Engineering Protection
for the Exposed Hand
A technical framework for impact exposure, task-specific glove selection, and residual hand protection using KONG® impact gloves.
Engineer the hand out of the hazard wherever possible.
Protect the hand intelligently where interaction remains.
Summary
Hand exposure is broader than the cut hazard most programmes are built around
Industrial hands are injured by far more than sharp edges. Impact, crushing, pinching, struck-by and caught-between events account for a substantial share of hand trauma across oil and gas, mining, ports, steel, and heavy engineering — yet most glove-selection programmes are still built around a single variable: palm cut resistance.
A worker's hand enters hazard zones through specific, identifiable pathways: contact with moving equipment, tool use, manual handling of tubulars and rigging hardware, and maintenance activity carried out close to steel components. Each of these pathways exposes a different part of the hand to a different injury mechanism. A glove chosen for palm cut resistance alone may leave the knuckles, fingers and metacarpals — the parts of the hand most exposed during impact and struck-by events — without meaningful protection.
Traditional glove-selection systems have tended to focus on three variables: palm material, cut-resistance rating, and price per pair. This is necessary but incomplete. It has historically under-weighted back-of-hand exposure, impact-zone coverage, task geometry, hand position during the task, finger articulation requirements, and the residual risk that remains after engineering controls have already been applied.
The framework this whitepaper proposes
This document sets out a structured, seven-step approach to hand protection that places task analysis before product selection:
- Understand the task. What is being handled, what forces are involved, what is the hand expected to do.
- Identify where the hand enters. The specific point and part of the hand exposed to the hazard.
- Determine what can contact the hand. The object, surface, or moving element responsible for potential injury.
- Remove avoidable exposure. Apply distance, tools, guarding, or task redesign before considering PPE.
- Map residual exposure. Document what risk remains once engineering controls are in place.
- Select appropriate glove protection. Match glove specification to the residual exposure, not to habit or catalogue position.
- Validate the choice in the field. Confirm performance under real task conditions before standardising.
"A glove can reduce injury severity. It cannot correct unsafe hand placement."
Within this framework, task-specific impact gloves — including the KONG® platform discussed in Section 9 — occupy a defined role: protecting the residual interaction that remains once avoidable exposure has been engineered out. They are presented here as one component of a control system, not as a substitute for it.
Protection Became
Necessary
The hand is not one impact zone
For most of industrial history, hand protection meant palm protection. Cotton gloves, PVC-dotted gloves, leather gloves and basic coated general-purpose gloves were designed primarily to manage grip, abrasion and minor cut exposure on the palm and fingers. They served these purposes adequately. They were not designed to manage heavy dorsal — back-of-hand — impact exposure, because for much of that history, that exposure was not yet recognised as a distinct category requiring its own engineering response.
The hand is not a single uniform surface. It is a set of structurally distinct regions, each with different injury mechanisms when struck, crushed, or caught:
- Knuckles — bony prominences with minimal soft-tissue cushioning; highly vulnerable to fracture under direct impact.
- Metacarpals — the long bones of the back of the hand; susceptible to fracture under crushing or heavy blunt force.
- Fingers — narrow, articulated, and frequently positioned closest to the hazard during manual tasks.
- Fingertips — dense in nerve endings; vulnerable to crush and laceration, and critical to dexterity and sensation.
- Thumb — structurally distinct from the fingers, essential to grip function, and frequently exposed during tool use.
- Thumb saddle — the web and base structure connecting the thumb to the palm; a common wear and injury point under repeated tool contact.
- Finger sidewalls — exposed during lateral pinch events, often outside the coverage area of basic gloves.
Because these regions differ in bone structure, soft-tissue depth, mobility requirement and typical hazard exposure, a single glove specification cannot protect all of them equally well. A glove engineered for palm grip and abrasion resistance may offer negligible protection to the knuckles and metacarpals. Recognising this distinction — that the back of the hand is its own hazard zone, with its own injury mechanisms — was the starting point for the development of dedicated impact protection as a category, discussed further in Section 6.
Fig. 2.1 — The hand is not one impact zone: dorsal anatomy mapped against typical injury mechanism per region
Industrial Impact
Exposure
Impact is not one event — it is a family of distinct mechanisms
"Impact protection" is often treated as a single category, but the exposures it is meant to address are mechanically distinct from one another. Distinguishing between them matters, because no single glove property addresses all of them equally.
| Mechanism | Description |
|---|---|
| Blunt impact | A single direct strike from a tool, component, or surface against the hand. |
| Localised impact | Force concentrated on a small contact area — typically knuckles or fingertips. |
| Repetitive low-energy impact | Frequent minor strikes over a shift, common in striking or hammering tasks. |
| High-energy impact | A single severe strike, often from a falling or swinging object. |
| Pinch | The hand caught between two converging surfaces, neither of which is moving with high force. |
| Crush | Sustained or high-force compression of the hand between two surfaces. |
| Caught-between | The hand trapped within a closing gap during equipment or load movement. |
| Struck-by | An object in motion strikes the hand; the hand is not the moving element. |
| Secondary impact | Impact resulting indirectly from an initial event — e.g. a dropped tool deflecting onto the hand. |
| Glancing contact | An oblique strike that transmits partial force and may combine impact with abrasion. |
A properly engineered impact glove can meaningfully reduce the force transmitted to the hand during blunt, localised, repetitive and certain high-energy impact events. It is not designed to, and cannot reliably be expected to, protect against severe crushing or prolonged entrapment — these mechanisms require engineering controls, not PPE, and are addressed directly in Section 11.
Variables that determine injury outcome
Whether a given impact results in a minor bruise or a fracture depends on more than the glove worn. The relevant variables include:
- Impact energy and the speed of the contacting object
- Contact area — concentrated force on a small area is more damaging than the same energy spread across a larger surface
- Object geometry — sharp edges, corners and points concentrate force differently than flat or rounded surfaces
- Mass of the moving object or component
- Hand position at the moment of contact
- What is directly behind the hand — a hard, unyielding surface increases injury severity compared with a surface that allows some give
- Duration of contact, particularly relevant to crush and caught-between events
- Repeated exposure over a shift, which can produce cumulative soft-tissue trauma even where no single event causes acute injury
Understanding these variables at the task level — rather than assuming "impact-rated" gloves are interchangeable — is the basis for the exposure-mapping approach set out in Section 5.
of PPE
Where the hierarchy of controls places the glove
Personal protective equipment occupies the lowest tier of the established hierarchy of controls — not because it is unimportant, but because it is the least reliable layer of defence. It depends on correct selection, correct fit, correct use, and continued integrity throughout a shift. Each of these can fail independently of the others.
The hierarchy, in descending order of reliability:
- Elimination — removing the hazard entirely from the task.
- Substitution — replacing a hazardous process, tool or material with a less hazardous one.
- Engineering controls — guarding, isolation, distance, and mechanical aids that physically separate the hand from the hazard.
- Administrative controls — procedures, training, signage, and work sequencing that reduce exposure.
- Personal protective equipment — the glove, the final layer, protecting the hand when interaction with residual risk remains necessary.
Fig. 4.1 — Hierarchy of controls, by reliability
In practice, many industrial tasks place the hand directly into avoidable hazard exposure that could be addressed at a higher tier of the hierarchy:
- Directly guiding a suspended load by hand instead of using a tag line or push-pull tool
- Reaching between components during alignment instead of using positioning fixtures
- Holding a chisel or punch by hand instead of using a holding tool
- Stabilising tubulars manually instead of using mechanical stabilisation aids
- Handling slings beneath a load instead of from a position clear of the suspended mass
- Working near rotating equipment without isolation or guarding in place
- Placing fingers near pinch points during manual adjustment
In each of these examples, a no-touch tool, a guard, a positioning device, isolation, or a mechanical aid addresses the hazard at its source. A glove, applied afterward, addresses only what remains once the task itself has been examined for avoidable exposure.
Residual protection begins only after avoidable exposure has been addressed.
This ordering is not a formality. A programme that selects gloves first and examines task design second has inverted the hierarchy — and will tend to over-rely on PPE to compensate for hazards that should have been engineered out.
Hand Protection
Framework™
A five-stage method for moving from task to glove specification
The HSF Residual Hand Protection Framework™ structures the decision process described in Section 1 into five stages. Each stage must be completed in sequence — skipping directly to Stage 5 is the most common cause of glove-selection programmes that protect the wrong part of the hand, or protect it against the wrong mechanism.
Stage 1 — Define the Task
Before any glove is considered, the task itself must be understood in mechanical terms:
- What is being handled?
- What is moving — the worker's hand, the component, or both?
- What forces are involved, and at what approximate magnitude?
- What is the hand expected to do — grip, guide, steady, strike, or release?
- What is the duration and frequency of the exposure across a shift?
Stage 2 — Map the Hand Entry Point
Every hand injury has a specific entry point — the moment and location where the hand crossed into the hazard zone. This stage asks:
- Where does the hand enter the hazard?
- Which part of the hand is exposed — palm, knuckle, fingertip, sidewall?
- Is the exposure intentional and necessary to the task, or incidental to how the task happens to be performed?
- Can the hand be replaced at this point by a tool, fixture, or device?
Stage 3 — Identify Exposure Mechanisms
With the entry point defined, the specific mechanisms present at that point must be assessed individually:
- Impact, cut, abrasion, puncture
- Pinch, crush, grip loss
- Heat, cold, chemical contamination
- Wet or oily surface conditions affecting grip
Stage 4 — Remove Avoidable Exposure
Before any glove specification is finalised, the question must be asked directly: can this exposure be removed rather than protected against? Options include distance, no-touch tools, automation, mechanical handling, isolation, guarding, fixtures, improved work positioning, and process redesign. Only exposure that survives this stage proceeds to Stage 5.
Stage 5 — Protect Residual Interaction
Glove selection is the final stage, not the first. At this point, the specification is built from the residual exposure profile established in Stages 1–4: required impact performance, cut level, abrasion resistance, puncture resistance, palm material, grip condition, dexterity requirement, cuff design, fit, expected wear duration, and environmental conditions.
Fig. 5.1 — HSF Residual Hand Protection Framework™ — five-stage decision flow
of Impact Protection
Gloves
How back-of-hand impact protection emerged as its own category
Dedicated impact-protection gloves are a comparatively recent category within industrial PPE. Their emergence is closely tied to operating environments where back-of-hand injury rates from impact, pinch and struck-by events remained persistent despite improvements in palm-focused cut and abrasion protection.
The oil and gas sector — particularly drill-floor and rig-deck operations, where workers routinely handle tubulars, rigging hardware and hand tools in close proximity to moving equipment — played a significant role in surfacing the need for this category. Field conditions on rigs exposed a gap that general-purpose and even cut-resistant gloves were not designed to close: protection against blunt force and crushing contact to the dorsal hand and fingers.
Early development of impact gloves was substantially field-led rather than laboratory-led. Prototype designs were trialled directly with crews performing the tasks the gloves were intended for, with iterative redesign based on wear patterns, failure points, and worker feedback on dexterity and comfort trade-offs. This is consistent with how task-specific PPE categories typically mature — performance requirements emerge from observed failure in the field before they are formalised into test standards.
Formal impact-testing standards followed the emergence of the category rather than preceding it, a sequence discussed further in Section 8.
KONG® is positioned in this history as one of the platforms developed specifically for this exposure profile, with design choices — dorsal TPR segmentation, knuckle and finger articulation, thumb-saddle reinforcement — that trace directly to the oilfield task conditions described above. The specific chronology of KONG®'s development, including dates, originating organisations and early deployment contexts, requires verification against primary Ironclad documentation before publication.
of an Impact Glove
What an impact glove is actually built from
An impact glove is a system of components engineered to work together, not a single material applied uniformly to a glove shape. Understanding the individual elements clarifies why two gloves with similar visual coverage can perform very differently in the field.
| Component | Function |
|---|---|
| Dorsal impact protection | Rigid or semi-rigid material over the back of the hand, absorbing and dispersing blunt-force energy away from bone. |
| TPR geometry | The shape, thickness and segmentation of thermoplastic rubber elements; determines force dispersion and flexibility. |
| Segmented protection | Discrete impact zones rather than one continuous shell, allowing the hand to flex at the knuckles. |
| Flex zones | Engineered gaps or thinner material between segments, permitting natural hand movement. |
| Finger articulation | Pre-curved or segmented finger construction that reduces resistance when gripping. |
| Knuckle coverage | Targeted protection over the most impact-vulnerable bony prominence on the hand. |
| Fingertip protection | Reinforcement at the point of highest dexterity demand and frequent crush exposure. |
| Metacarpal coverage | Protection across the back-of-hand long bones, often the largest single impact zone. |
| Thumb protection | Independent coverage reflecting the thumb's distinct range of motion and exposure pattern. |
| Sidewall coverage | Protection against lateral pinch and glancing contact, often absent from basic impact gloves. |
| Palm construction | Material selection for grip, abrasion resistance and durability under load-bearing contact. |
| Thumb-saddle reinforcement | Reinforced material at the high-wear junction between thumb and palm. |
| Cuff design | Closure and length determining debris ingress protection and ease of don/doff. |
| Seam architecture | Stitch placement and reinforcement at points of greatest mechanical stress. |
| Liner construction | Inner material affecting comfort, moisture management and wear duration. |
Visual coverage alone is not a reliable indicator of protective performance. A glove can appear heavily armoured while leaving gaps in continuity between impact elements that allow force to transmit directly to bone at the seams. What matters in practice is the engineered relationship between these components:
- Protection continuity — whether impact elements work as a connected system or leave unprotected gaps between segments
- Attachment quality — how securely TPR or composite elements are bonded to the glove shell, and their resistance to detachment under repeated flexing
- Flexibility — whether the protective elements restrict natural hand movement enough to affect task performance
- Weight and bulk — added mass and thickness that may reduce dexterity or increase fatigue over a shift
- Worker comfort — a critical and frequently underweighted factor, since a glove that is removed due to discomfort provides no protection at all
Impact protection is not the presence of rubber. It is the engineered relationship between coverage, geometry, force reduction and hand movement.
Impact Standards
What a rating tells you — and what it does not
Two test frameworks are most commonly referenced for impact and mechanical performance of industrial gloves: ANSI/ISEA 138 in North American markets, and the EN 388 mechanical-risk standard with its impact-marking provision in European and many other markets. Both provide standardised, repeatable ways to measure specific aspects of glove performance — but both measure narrower things than the phrase "impact-rated" might suggest.
ANSI/ISEA 138 specifically addresses back-of-hand impact protection, testing force transmission at defined zones of the glove under controlled impact conditions and assigning a performance level based on the result.
EN 388's impact marking (the "P" designation following the four mechanical-risk digits) indicates whether the glove has passed a defined impact-energy transmission test at the knuckle area specifically — it does not certify impact performance across the full dorsal surface of the glove, and a glove without the "P" marking has simply not been tested for impact, not necessarily failed it.
What ratings do not tell you
Three points of clarification matter for anyone using these ratings to make a purchasing or specification decision:
- A higher impact rating does not automatically make a glove suitable for every task. Impact performance is one variable among several relevant to a given exposure profile.
- Impact ratings do not replace separate assessment of cut, grip, abrasion or dexterity. These are tested and rated independently, and a glove can score well on impact while being unsuitable for a task's cut or grip requirements.
- Certification is only one part of product selection. Standards establish a tested minimum under laboratory conditions; they do not guarantee field suitability for a specific task, environment, or worker population. Field validation, addressed in Section 12, remains necessary.
Specification language that simply states "impact-rated" or "meets ANSI 138" without specifying the performance level and the specific zones tested provides limited assurance. Procurement guidance on writing more precise specifications is set out in Section 15.
Task-Specific
Impact Platform
KONG® as a family of task-specific gloves, not a single product
KONG® is presented in this whitepaper as a platform of distinct glove models, each engineered for a different point on the exposure spectrum described in Sections 2 and 3. This section focuses on two models with clearly differentiated exposure profiles: KONG® Original SDX2 and KONG® Deck Crew KDC5. Specifications below are drawn from current Ironclad product technical data sheets.
KONG® Original SDX2 — balanced heavy-duty impact protection
SDX2 is built around general impact exposure across heavy industrial and oilfield tasks where dorsal protection, durability and dexterity all matter, but extreme cut or abrasion resistance is not the dominant requirement. Construction features a double-layer synthetic leather dotted palm for all-purpose durability, a breathable nylon back-of-hand, and patented full-coverage TPR protection across the fingers, thumb, knuckle and metacarpal.
| Specification | SDX2 |
|---|---|
| ANSI/ISEA 105 cut level | A2 |
| EN 388:2016 rating | 4242AP (abrasion 4 / cut 2 / tear 4 / puncture 2 / ISO cut letter A / impact-tested) |
| ANSI/ISEA 138 impact level | 2 |
| EN 407 thermal rating | X1XXXX |
| Peak impact protection | 3X 150:50 · 5X 500:100 · 5X 375:75 |
| Grip rating — dry / wet / oily | 5★ / 5★ / 3★ |
| Palm construction | Double layer synthetic leather, dotted |
| Back of hand | Breathable nylon |
| Cuff | Slip-on |
| Sizes | S – XXXL |
This profile suits tasks where the hand is repeatedly exposed to blunt impact and struck-by risk during general handling — rig-floor tool use, equipment handling, and broad maintenance work — without the combined heavy-abrasion and high-cut demands addressed by KDC5 below.
KONG® Deck Crew KDC5 — combined cut, abrasion and impact protection
KDC5 is built for tasks where impact exposure is combined with severe cut and abrasion risk — sharp steel edges, wire rope, tubular handling, rigging hardware, and heavy maintenance. The palm uses a 4-layer Armortex® high-abrasion construction with a cut-resistant liner made with DuPont™ Kevlar®, paired with the same patented KONG® impact protection across fingers, thumb, knuckle and metacarpal. An Armortex®-reinforced thumb saddle addresses a known high-wear failure point identified in Section 13, and the shell is treated with DuPont™ Teflon™ for water and oil repellency.
| Specification | KDC5 |
|---|---|
| ANSI/ISEA 105 cut level | A7 |
| EN 388:2016 rating | 4X44FP (abrasion 4 / cut not assigned [X] / tear 4 / puncture 4 / ISO cut letter F / impact-tested) |
| ANSI/ISEA 138 impact level | 2 |
| EN 407 thermal rating | X2XXXX |
| Peak impact protection | 3X 150:50 · 5X 500:100 · 5X 375:75 |
| Grip rating — dry / wet / oily | 5★ / 5★ / 4★ |
| Palm construction | 4-layer Armortex® high-abrasion, Kevlar® cut-resistant liner |
| Shell treatment | DuPont™ Teflon™ water/oil repellent |
| Cuff | Slip-on |
| Sizes | S – XXXL |
Ironclad's published industry guidance for KDC5 lists oil and gas drilling, extraction and refining, fracking, mining, demolition, heavy construction, rigging, and tool pushing as primary applications — consistent with the combined cut, abrasion and impact exposure typical of those environments.
Selecting between SDX2 and KDC5
Both gloves carry the same ANSI/ISEA 138 Level 2 impact rating — the differentiator is not impact performance but the cut, abrasion and puncture profile beneath it. The selection question is not "which is the better glove" but "which exposure profile matches the task," consistent with the Stage 5 logic in Section 5.
| Exposure or Task Requirement | SDX2 | KDC5 | Selection Consideration |
|---|---|---|---|
| General impact handling | ✓ | ✓ | Both rated ANSI/ISEA 138 Level 2 — equivalent at this layer |
| Higher cut exposure | A2 | A7 | KDC5 for sharp steel, blade contact, wire strand |
| Heavy abrasion | – | ✓ | KDC5's Armortex® palm suited to sustained abrasive contact |
| Dexterity-sensitive work | ✓ | – | SDX2's lighter palm construction favours fine task work |
| Wet or oily handling | 3★ oily | 4★ oily | KDC5 rated higher for oily-grip retention |
| Rigging hardware | ✓ | ✓ | Confirm cut exposure level present at point of contact |
| Tubular handling | – | ✓ | KDC5 for direct contact with tubular threads and edges |
| Maintenance tools | ✓ | ✓ | Either, depending on surrounding cut/abrasion exposure |
This comparison should be read alongside an actual task assessment using the framework in Section 5 — the table identifies which exposure dimension each glove is engineered to address, not a universal ranking of one model over the other.
Mapping
Applying the framework across five industrial sectors
The five-stage framework in Section 5 produces different residual exposure profiles depending on the sector and the specific task. The mappings below illustrate the framework applied to representative tasks — they are starting points for a site-specific assessment, not substitutes for one.
Oil and Gas
Representative tasks: drill-floor operations, tubular handling, slips and tongs, rigging, maintenance, offshore deck work, valve and pipeline activities.
| Assessment Dimension | Typical Profile |
|---|---|
| Hand interaction | Frequent, often sustained contact with tubulars, hardware and tools |
| Impact source | Tongs, slips, dropped or swinging components, equipment contact |
| Cut and abrasion exposure | High — sharp threads, wire rope, steel edges |
| Grip conditions | Frequently wet, oily, or both |
| Engineering-control opportunity | Tag lines, mechanical tongs, positioning aids, no-touch handling tools |
| Residual glove requirement | Combined impact, cut, abrasion and oily-grip performance |
| Field-validation requirement | Trial under actual rig-floor wet/oily conditions, not bench conditions |
Mining
Representative tasks: heavy equipment maintenance, conveyor systems, steel components, impact tools, rock and material handling.
| Assessment Dimension | Typical Profile |
|---|---|
| Hand interaction | Maintenance contact with heavy steel components and fasteners |
| Impact source | Tool strikes, component handling, falling material |
| Cut and abrasion exposure | Moderate to high, dependent on material handled |
| Grip conditions | Dry to dusty; abrasive particulate common |
| Engineering-control opportunity | Lockout/isolation before maintenance access; mechanical handling for heavy components |
| Residual glove requirement | Impact and abrasion resistance with durable, dust-tolerant construction |
| Field-validation requirement | Trial across full maintenance shift, assessing wear under particulate exposure |
Ports and Marine
Representative tasks: shackle handling, wire rope, cargo securing, deck maintenance, mooring preparation.
| Assessment Dimension | Typical Profile |
|---|---|
| Hand interaction | Direct handling of rigging hardware and wire rope |
| Impact source | Shackle and hardware contact, equipment movement |
| Cut and abrasion exposure | High — wire strand and hardware edges |
| Grip conditions | Wet, salt-exposed, frequently oily |
| Engineering-control opportunity | Positioning tools for shackle pinning; standoff distance from securing points |
| Residual glove requirement | Cut and abrasion resistance with reliable wet-grip retention |
| Field-validation requirement | Confirm wet-grip performance under actual deck conditions |
Steel and Heavy Engineering
Representative tasks: plate handling, fabrication, tool work, assembly, maintenance, sharp and abrasive components.
| Assessment Dimension | Typical Profile |
|---|---|
| Hand interaction | Plate and component handling, assembly-line proximity work |
| Impact source | Component contact, tool strikes, struck-by during handling |
| Cut and abrasion exposure | High — sheared and machined edges |
| Grip conditions | Dry to lightly oiled, dependent on process stage |
| Engineering-control opportunity | Edge deburring at source; mechanical lifting for plate handling; fixtures for assembly alignment |
| Residual glove requirement | Cut-resistant palm with dorsal impact protection for tool and component contact |
| Field-validation requirement | Trial across representative assembly and maintenance tasks separately |
Shipyards
Representative tasks: heavy steel work, rigging, mechanical maintenance, confined-space work, abrasive surfaces.
| Assessment Dimension | Typical Profile |
|---|---|
| Hand interaction | Sustained contact in confined and awkward working positions |
| Impact source | Structural steel contact, tool use, rigging hardware |
| Cut and abrasion exposure | High — corroded and cut steel surfaces |
| Grip conditions | Variable; often dusty or oily depending on work area |
| Engineering-control opportunity | Improved access planning to reduce confined-space hand exposure; mechanical aids for rigging tasks |
| Residual glove requirement | High cut and abrasion resistance with dexterity sufficient for confined-space work |
| Field-validation requirement | Trial specifically in confined-space conditions where dexterity loss is most consequential |
Glove Is Not
the Answer
Recognising when a glove should not be relied upon
Responsible glove selection includes recognising the exposures a glove is not designed to address. Recommending an impact glove for these situations does not reduce risk — it can create a false sense of protection that delays the engineering control actually required.
- Severe crushing. No glove material can prevent injury when the hand is compressed between two surfaces under high force.
- Hands placed between moving parts. The control required is preventing hand placement in the danger zone, not cushioning what happens once it is there.
- Suspended-load contact. Guiding a load by hand exposes the hand to forces no glove is rated to manage. No-touch tools and tag lines are the correct control.
- Entanglement risk. Loose glove material near rotating equipment can itself become a hazard. Isolation and guarding are required.
- Rotating machinery. Contact with rotating components requires lockout, guarding or isolation — not glove selection.
- Chemical incompatibility. An impact glove's materials are not necessarily rated for chemical exposure; a separate chemical-resistant glove or task redesign is required.
- Thermal exposure beyond glove limits. EN 407 ratings define specific thermal performance boundaries; exceeding them requires different PPE or process control.
- Electrical risk. Impact gloves are not insulating PPE and must not be substituted for electrical-rated gloves near live conductors.
- Tasks requiring mechanical aids. Where a tool exists to remove the hand from the hazard entirely, that tool — not a glove — is the correct first response.
- Tasks requiring different specialised PPE. Some exposures call for a different category of hand protection entirely — chemical gauntlets, anti-vibration gloves, cold-rated gloves — rather than an impact glove adapted to a role it was not designed for.
A glove can reduce injury severity. It cannot correct unsafe hand placement.
Validation Protocol
A structured process for trialling a glove before standardising on it
A rating sheet confirms laboratory performance. A field trial confirms whether the glove performs for the specific task, worker population, and environment it will actually be used in. Skipping this step is one of the most common causes of poor glove adoption — and of gloves being removed mid-shift, which eliminates whatever protection they were providing.
Before the Trial
Record baseline information that will be needed to interpret trial results:
- Task being performed
- Exposure profile established using the Section 5 framework
- Current glove in use, if any, and known issues with it
- Worker group participating in the trial
- Sizes required across the group
- Environmental conditions — temperature, wet/dry/oily, dust
- Expected wear period for the trial
During the Trial
Monitor performance across the dimensions that determine whether a glove will actually be worn and will actually protect:
- Grip performance under task conditions
- Fit across the worker group
- Dexterity for task-specific manipulation
- Comfort over a full shift
- Heat build-up and sweating
- Palm wear progression
- Seam wear and integrity
- TPR or impact-element damage
- Thumb-saddle condition
- Worker behaviour — including whether the glove is removed during the task, and when
- Glove removal — frequency and stated reason
At the End of the Trial
Record outcomes needed for a standardisation decision:
- Number of working days the glove remained serviceable
- Reason for withdrawal, if withdrawn before expected end of life
- Worker feedback, gathered directly rather than inferred
- Failure location, if failure occurred
- Cost per working day, calculated per Section 14
- Suitability for continued use as standard issue
- Whether a different model is indicated
- Whether the trial revealed a need for an engineering control rather than a different glove
Appendix B — Glove Trial Evaluation Sheet
A one-page printable trial form covering the fields above is provided in Appendix B for direct field use.
Analysis
A worn glove is evidence
The way a glove wears and fails is not incidental information to be discarded at replacement. It is a direct record of how the hand actually interacts with the task — often more reliable than a verbal task description, because wear patterns reflect what happened, not what was assumed would happen.
| Wear / Failure Pattern | What It Typically Indicates |
|---|---|
| Fingertip wear | High-frequency fine manipulation; possible indicator that task requires more dexterity than the glove allows, leading to compensating fingertip contact |
| Palm wear | Sustained gripping or load-bearing contact concentrated in the palm |
| Thumb-saddle damage | Repeated tool-handle or hardware contact at the thumb base — a known high-stress zone addressed by reinforcement in models such as KDC5 |
| Seam rupture | Mechanical stress exceeding seam tolerance, often from repeated flexing or pulling motion |
| TPR separation | Adhesion or attachment failure of impact elements, reducing dorsal protection coverage |
| Cuff damage | Repeated don/doff cycling or contact during entry/exit from confined spaces |
| Oil saturation | Task environment exceeding the glove's oil-repellent treatment capacity |
| Surface hardening | Chemical or thermal exposure altering material properties, often reducing flexibility and grip |
| Loss of grip | Surface wear, contamination, or material degradation reducing frictional performance |
| Cut penetration | Exposure exceeding the glove's rated cut level — signals a need to reassess Stage 3 of the Section 5 framework |
A worn glove is evidence. Its failure pattern can help identify how the task exposes the hand.
A structured visual inspection process — checking each of these patterns at defined intervals rather than waiting for visible failure — allows a programme to catch under-specification before an injury occurs, not after. A visual inspection chart for this purpose is provided in Appendix C.
Impact Protection
Why purchase price alone is an inadequate basis for comparison
Comparing gloves on purchase price per pair treats them as interchangeable commodities. They are not. A lower-priced glove that fails in half the working days, or that workers remove due to poor fit or comfort, can cost more per day of actual protection than a higher-priced glove that is worn for its full service life.
Cost Per Working Day
Cost per working day = Purchase price ÷ Verified usable working days
This single metric, properly tracked through the field trial process in Section 12, surfaces information that price-per-pair comparison hides. Factors that influence the real figure include:
- Replacement frequency under actual task conditions, not catalogue-rated service life
- Worker acceptance — a glove that is comfortable and well-fitted is worn longer and more consistently
- Glove utilisation — whether the glove is actually worn during the exposure window, or removed
- Premature disposal due to fit, comfort, or task mismatch rather than genuine wear-out
- Inventory complexity from carrying too many models or sizes, increasing the chance of mis-issue
- Injury severity and its downstream cost if the wrong glove is selected to save on unit price
- Lost time from injury, glove-related task interruption, or re-fitting
- Productivity interruption caused by gloves that restrict necessary dexterity
- Procurement consistency — standardising on validated models versus ad hoc purchasing
- The cost of overspecification — paying for protection levels beyond what the task requires
- The cost of underspecification — the larger and more serious cost, carrying injury and compliance risk
This whitepaper does not assert that any specific glove or specification produces a defined cost saving. The cost-per-working-day method is presented as a measurement tool: it allows a programme to compare options on a consistent basis, using data generated by its own field trials rather than supplier claims.
Specification
Guidance
Writing a specification that actually controls what gets purchased
A glove specification is only useful if it constrains the purchasing decision to options that genuinely match the task's residual exposure profile. A specification built around brand name or price leaves that match to chance.
A proper specification should include
- The application or task the glove is being specified for
- Impact requirement, stated against a specific standard and performance level
- Cut requirement, stated against a specific standard and level
- Abrasion resistance requirement
- Puncture resistance requirement
- Palm type and material
- Grip condition the glove must perform under — dry, wet, or oily
- Cuff type appropriate to the task and any debris-ingress concern
- Required size range for the workforce
- Standards the glove must be certified against
- A trial requirement before full standardisation
- An approved-equivalents policy, where substitution is permitted only against matching specification, not matching brand
- Inspection criteria for in-service gloves
- Replacement criteria tied to the wear patterns in Section 13, not a fixed calendar interval alone
What a specification should never rest on alone
- Brand name, without reference to the underlying specification
- Lowest price, without reference to cost per working day
- Colour or visual appearance
- Generic phrases such as "heavy-duty," which carry no testable meaning
- A single test rating, presented without the full exposure profile it needs to be read alongside
A specification written this way also gives procurement and EHS teams a shared, defensible basis for evaluating supplier proposals — including the SDX2/KDC5 comparison in Section 9 — against the task, rather than against each other's marketing claims.
Development of
Impact Protection
in India
Building awareness before demand could exist
PSC introduced KONG® to the Indian market in 2008, at a point when impact protection was not yet a widely recognised glove category among Indian industrial buyers. Where cut-resistant and general-purpose gloves were established and well understood, dedicated back-of-hand impact protection had no existing reference point in most buyers' purchasing frameworks.
This required a different kind of market entry than introducing a new model within an established category. PSC's early work centred on:
- Early market education — explaining what back-of-hand impact exposure was, and why it was distinct from the cut and abrasion exposure most buyers were already managing
- Demonstrations — showing the construction and function of impact protection directly, since the category had no existing reference point
- Site engagement — working directly with oilfield and industrial sites to understand task-level exposure rather than presenting a generic product pitch
- Oilfield applications — building initial category presence in the sector where the exposure case was most immediately visible
- Back-of-hand injury awareness — surfacing a hazard category that safety programmes had often not formally tracked separately from general hand injury
- Resistance to premium glove pricing — working through buyer resistance to a price point well above commodity general-purpose gloves, by connecting it to the specific exposure it addressed
- Transition toward task-specific selection — moving buyers from single-glove-for-all-tasks purchasing toward exposure-matched selection
- Long-term category development — sustaining this positioning over time rather than treating it as a one-time product launch
There was no established impact-glove market. Awareness had to be built before demand could exist.
This history positions PSC's role in the Indian market specifically as category-development work, not as one distributor competing with others on an already-understood product. The same task-mapping orientation that shaped this early market education underlies the framework presented throughout this whitepaper.
Exposure Control
Combining elimination and residual protection into one model
The preceding sections have treated exposure elimination and residual protection as sequential stages of a single process. This section draws them together as one integrated control model, rather than two competing approaches to hand safety.
Exposure Elimination
- Distance — increasing the physical separation between the hand and the hazard
- No-touch tools — purpose-built devices that remove the hand from direct contact
- Mechanical aids — equipment that performs the function the hand would otherwise perform
- Guarding — physical barriers preventing hand access to a hazard zone
- Isolation — removing energy or motion from the hazard before hand interaction occurs
- Process redesign — restructuring the task so the original exposure no longer arises
Residual Protection
- Impact gloves — addressing dorsal impact, struck-by and blunt-force exposure that remains after elimination
- Cut protection — matched to the specific cut exposure identified at Stage 3
- Abrasion protection — matched to sustained or repeated abrasive contact
- Grip — selected for the actual wet, dry or oily condition of the task
- Fit — confirmed across the actual worker population, not a single reference size
- Task-specific materials — selected for the residual exposure profile, not for general suitability
The mature hand-safety programme does not choose between tools and gloves. It uses tools to remove avoidable exposure and gloves to protect the residual interaction that remains.
Framed this way, the choice is not whether to invest in engineering controls or in PPE — both are necessary parts of the same system, applied in the sequence the hierarchy of controls establishes, and reviewed continuously as tasks, equipment and personnel change.
From general-purpose covering to engineered protection
Impact-protection gloves represent a meaningful evolution in industrial hand safety — from hand covering selected primarily for grip and basic durability, to engineered protection matched against a specific, mapped exposure profile. That evolution is not complete. It depends on the discipline with which it is applied, task by task, on every site that adopts it.
The future of effective hand safety programmes will depend less on the emergence of new glove materials and more on the rigour of the process around glove selection:
- Better task analysis, conducted before any product is considered
- Better exposure mapping, identifying precisely where and how the hand is at risk
- More effective engineering controls, applied ahead of PPE wherever feasible
- More precise glove selection, matched to residual exposure rather than habit or price
- Better worker trials, generating real field data rather than relying on supplier claims
- Stronger collaboration between HSE, operations and procurement, so that specification, purchasing and field reality stay aligned
First ask where the hand enters the hazard. Then decide whether the hand should be there at all. Only after that should the glove be selected.
Hand Impact
Exposure Mapping
Form
Hand Impact Exposure Mapping Form
Use this form to apply the five-stage framework in Section 5 to a specific task. Complete one form per distinct task.
| Stage 1 — Task Definition | |
|---|---|
| Task name / description | |
| What is being handled | |
| Forces involved (approx.) | |
| What the hand is expected to do | |
| Duration / frequency per shift | |
| Stage 2 — Hand Entry Point | |
|---|---|
| Where the hand enters the hazard | |
| Part of hand exposed | |
| Intentional or incidental exposure | |
| Can the hand be replaced by a tool/device | |
| Stage 3 — Exposure Mechanisms Present (tick all that apply) | |
|---|---|
| ☐ Impact | ☐ Cut |
| ☐ Abrasion | ☐ Puncture |
| ☐ Pinch | ☐ Crush |
| ☐ Grip loss | ☐ Heat / Cold |
| ☐ Chemical contamination | ☐ Wet / oily surface |
| Stage 4 — Avoidable Exposure Review | |
|---|---|
| Engineering control(s) considered | |
| Control(s) implemented | |
| Residual exposure remaining after controls | |
| Stage 5 — Glove Specification Derived | |
|---|---|
| Required impact level | |
| Required cut level | |
| Required abrasion / puncture resistance | |
| Grip condition (dry / wet / oily) | |
| Dexterity requirement | |
| Candidate model(s) | |
Glove Trial
Evaluation Sheet
Glove Trial Evaluation Sheet
One-page printable form for use during the field trial protocol described in Section 12.
| Trial Setup | |
|---|---|
| Glove model under trial | |
| Task / application | |
| Worker group size | |
| Trial start date | |
| Expected trial duration | |
| Daily / Periodic Observation Log | ||
|---|---|---|
| Date | Observation | Action / Note |
| Trial Close-Out | |
|---|---|
| Working days completed | |
| Reason for withdrawal (if any) | |
| Failure location (if any) | |
| Worker feedback summary | |
| Cost per working day | |
| Recommendation | ☐ Standardise ☐ Trial alternate model ☐ Engineering control needed |
Impact Glove
Inspection
Checklist
Impact Glove Inspection Checklist
For use at defined intervals to catch wear and failure patterns described in Section 13 before they result in loss of protection.
| Inspection Point | Pass | Fail / Note |
|---|---|---|
| Fingertip condition — no excessive wear or thinning | ☐ | |
| Palm condition — no holes, excessive thinning | ☐ | |
| Thumb-saddle integrity — no separation or tearing | ☐ | |
| Seams intact — no rupture or open stitching | ☐ | |
| TPR / impact elements — securely attached, no separation | ☐ | |
| Cuff condition — closure functional, no tearing | ☐ | |
| Shell condition — no excessive oil saturation | ☐ | |
| Material flexibility — no hardening or stiffening | ☐ | |
| Grip surface — no smoothing or loss of texture | ☐ | |
| No visible cut penetration through palm liner | ☐ | |
| Overall fit — still correctly sized for wearer | ☐ |
Any single "fail" result should trigger replacement rather than continued use pending further wear — the inspection point exists because that specific failure mode has a known link to reduced protection.
SDX2 and KDC5
Technical Data
Sheets
SDX2 and KDC5 Technical Data Reference
Consolidated specification reference for both models discussed in Section 9, drawn from current Ironclad product technical data sheets. For full product documentation, refer to the official Ironclad data sheet for each model.
| Specification | KONG® Original SDX2 | KONG® Deck Crew KDC5 |
|---|---|---|
| ANSI/ISEA 105 cut level | A2 | A7 |
| EN 388:2016 | 4242AP | 4X44FP |
| ANSI/ISEA 138 impact level | 2 | 2 |
| EN 407 thermal | X1XXXX | X2XXXX |
| Grip — dry | 5★ | 5★ |
| Grip — wet | 5★ | 5★ |
| Grip — oily | 3★ | 4★ |
| Peak impact protection | 3X 150:50 / 5X 500:100 / 5X 375:75 | 3X 150:50 / 5X 500:100 / 5X 375:75 |
| Palm | Double-layer synthetic leather, dotted | 4-layer Armortex®, Kevlar® liner |
| Back of hand | Breathable nylon | Impact-resistant flexible rubber, knuckle guard |
| Shell treatment | — | DuPont™ Teflon™ water/oil repellent |
| Cuff | Slip-on | Slip-on |
| Sizes | S, M, L, XL, XXL, XXXL | S, M, L, XL, XXL, XXXL |
| US Patents | 9241519, D756039 | 9241519, D756039 |
Glossary of
Impact Protection
Terms
Glossary of Impact Protection Terms
| Term | Definition |
|---|---|
| ANSI/ISEA 138 | The American National Standards Institute / International Safety Equipment Association standard for back-of-hand impact protection performance. |
| EN 388 | The European standard for gloves providing protection against mechanical risks, rating abrasion, cut, tear, puncture, and optionally impact and ISO cut resistance. |
| EN 407 | The European standard for gloves providing protection against thermal risks (heat and/or fire). |
| Dorsal protection | Protection applied to the back of the hand, as distinct from palm-side protection. |
| Metacarpal | The long bones of the hand, located between the wrist and the fingers, forming the structural back of the hand. |
| TPR | Thermoplastic rubber — a common material used in segmented dorsal impact protection elements. |
| Thumb saddle | The junction area between the thumb and the palm, a frequent high-wear point under tool and hardware contact. |
| Cut level (ANSI) | A standardised rating (A1–A9 under ANSI/ISEA 105) indicating the force required to cut through a glove's palm material under controlled test conditions. |
| ISO cut letter | A supplementary cut-resistance rating under EN 388, using ISO 13997 blade-cut testing, expressed as a letter (A–F). |
| Force transmission | The amount of impact energy that passes through a glove's protective material to the hand beneath it. |
| Caught-between | An injury mechanism in which the hand becomes trapped within a closing gap between two surfaces or components. |
| Struck-by | An injury mechanism in which a moving object contacts a stationary or differently-moving hand. |
| Hierarchy of controls | The standard framework ranking hazard-control methods by reliability: elimination, substitution, engineering controls, administrative controls, and PPE. |
| Residual exposure | The hazard exposure that remains after engineering and administrative controls have been applied, requiring PPE to address. |
| Field validation | Confirmation of glove performance under actual task conditions, as distinct from laboratory certification alone. |
Relevant Standards
and References
Relevant Standards and References
- ANSI/ISEA 105 — American National Standard for Hand Protection Classification
- ANSI/ISEA 138 — American National Standard for Performance and Classification for Impact Protective Gloves
- EN 388:2016 — Protective gloves against mechanical risks
- EN 407 — Protective gloves against thermal risks (heat and/or fire)
- ISO 13997 — Protective clothing — Mechanical properties — Determination of resistance to cutting by sharp objects
- Ironclad Performance Wear — KONG® Original SDX2 Technical Data Sheet (current revision)
- Ironclad Performance Wear — KONG® Deck Crew KDC5 Technical Data Sheet (current revision)
Additional historical and research references cited in Sections 6 and 16 require verification against primary sources before publication and are marked accordingly in the body of this document.
Published by PSC Hand Safety India Private Limited. Hand Safety First® is a PSC Hand Safety Brand.
Hand Safety First® · A PSC Hand Safety Brand · handsafetyfirst.in