Safety Gloves

What is a Safety Glove

A safety glove is an item of personal protective equipment that covers the hand and is designed, manufactured, and tested to a recognised performance standard against one or more defined hazards. The distinction from an ordinary work glove is the word tested: a true safety glove carries a CE or UKCA mark, a declaration of conformity, and printed pictograms that reference the specific standard and the measured performance levels. In the European Union, gloves are classified under Regulation (EU) 2016/425 into three categories. Category I covers minimal risk such as gardening; Category II covers intermediate risk such as general mechanical protection; Category III covers irreversible or fatal risks such as harmful chemicals, high heat, or electric shock, and requires both type examination and ongoing factory surveillance by a notified body.

Hand and finger injuries remain among the most common recordable workplace injuries across manufacturing, construction, and logistics. The hand is uniquely exposed because it is the tool the worker uses to interact with hazards directly, so the protective layer must reconcile two opposing demands: enough barrier to stop the hazard, and enough thinness and flexibility to let the worker still feel and manipulate the work. Every glove specification is a negotiated compromise between protection level and dexterity, which is why no single glove serves an entire plant.

Modern safety gloves trace back to the leather and canvas gauntlets of heavy industry in the early twentieth century. The decisive change came with seamless knitting machines and dip-coating lines in the 1980s, which let manufacturers knit a thin engineered yarn liner to the exact shape of the hand and then apply a precise polymer coating only where grip and abrasion mattered. High-performance yarns followed: para-aramid fibre (commercially Kevlar) in the 1970s, ultra-high-molecular-weight polyethylene (HPPE, commercially Dyneema and Spectra) in the 1990s, and engineered composite yarns blending HPPE with glass and steel filaments after 2000. These yarns made it possible to reach high cut resistance in a thin, comfortable 13 or 18 gauge glove rather than a stiff metal-mesh chainmail glove.

The regulatory framework matured in parallel. EN 388 for mechanical risks, EN ISO 374 for chemicals, EN 407 for heat and flame, and EN 511 for cold sit on top of the general requirements standard EN ISO 21420:2020, which every protective glove must meet regardless of hazard. In North America, ANSI/ISEA 105 plays the equivalent classification role on a voluntary basis. Reading a glove specification correctly means reading these standards together: the pictogram tells you which hazard family, and the characters after it tell you the measured level.

Four engineering questions drive almost every glove selection: what is the dominant hazard (cut, abrasion, chemical, heat, cold, impact), what protection level does that hazard require, how much dexterity must the worker retain, and how long is the wear cycle before the glove is changed. Getting these four right matters more than brand, because a correctly specified mid-tier glove protects the worker, while an over-specified glove that is too stiff to work in will be removed and defeat its own purpose.

Glove Types and Construction

Safety gloves divide into broad families by construction, and construction predicts both the protection profile and the price band. The table below summarises the main families a buyer will encounter, the hazard each is built for, and the standards that typically apply. Choosing the wrong family is the most common selection error: a palm-coated knit will not survive chemical immersion, and a chemical glove will not give the dexterity an electronics line needs.

Coated knits are the workhorse of modern industry. A seamless yarn liner is knitted to hand shape and dipped in a polymer coating over the palm and fingers, or three-quarters of the way up the back. The liner gives comfort and a base level of cut and abrasion resistance, while the coating delivers grip and abrasion durability. The Ansell HyFlex 11-840, a 15 gauge nylon and spandex liner with a microfoam nitrile palm coating, is a representative general-handling example conforming to EN 388:2016+A1:2018 and EN ISO 21420:2020.

Cut-resistant knits use the same construction but replace the nylon liner with an engineered high-performance yarn (HPPE, para-aramid, or a composite that adds glass or steel filaments). The finer the gauge, the thinner and more dexterous the glove for a given cut level, which is why a modern 18 gauge HPPE glove can reach a high EN 388 cut level while still allowing fine work. These gloves are specified by their cut level first, then coating and gauge.

Fully dipped and unsupported gloves are continuous polymer films, either over a flock or knit liner (supported) or as a bare film (unsupported), and are the only construction suitable for liquid immersion. They are rated to EN ISO 374 and selected by the specific chemical, not by a generic chemical label. Disposable single-use gloves, typically nitrile, latex, or vinyl, protect against biological agents and light chemical splash; nitrile is the dominant material because it avoids latex protein allergy and resists oils.

Leather, driver, and rigger gloves remain the default for rough construction and rigging where abrasion and incidental spark contact dominate. Thermal gloves split into heat protection rated to EN 407:2020 (foundry, furnace, hot maintenance) and cold protection rated to EN 511:2006 (freezers, cold stores, outdoor winter work). The SHOWA 451 is a representative cold-handling glove: a thermal acrylic liner with a latex coating for grip in cold conditions.

Materials, Liners, and Coatings

Glove performance is the product of two independent material choices: the liner yarn or film that carries the structural protection, and the coating that delivers grip, abrasion durability, and liquid resistance. Buyers routinely confuse the two, so it helps to specify them separately. The table below compares the common coatings that engineers select between, since coating drives grip in oil and water more than the liner does.

Polyurethane is the thinnest coating and gives the best dry dexterity and tactility, which is why it dominates electronics and precision assembly. It offers little liquid resistance and wears faster than nitrile, so it is a poor choice for oily or abrasive duty. Nitrile is a synthetic rubber that resists oils, fuels, and many solvents, and is the most versatile general-purpose coating. The microfoam or sandy nitrile finish is engineered with a porous surface that draws oil and water into its pores so the solid coating still contacts the part, giving the best grip on slippery surfaces.

Latex coatings, usually crinkle-finished, give the highest raw grip and excellent tear strength on dry and damp surfaces, but cannot be used where natural rubber latex protein allergy is a concern. PVC, applied in single, double, or triple dips over a liner, gives a thick chemical-splash and abrasion barrier at the cost of dexterity and is common on rough handling and chemical gloves such as the triple-dipped SHOWA 660.

On the liner side, the choice of yarn sets the cut and abrasion ceiling. Nylon and polyester liners are comfortable and cheap but offer minimal cut resistance, suiting general handling. HPPE (high-performance polyethylene, sold as Dyneema and Spectra) delivers high cut resistance at low weight and is the backbone of most modern cut-resistant gloves. Para-aramid (Kevlar) adds heat resistance alongside cut resistance, useful where cut and warm surfaces coincide. Composite yarns wrap HPPE or aramid around glass or fine steel filaments to push cut resistance to the highest levels in a thin glove. The table below maps liner yarns to the protection they add.

Performance Standards Decoded

The number on a glove only means something once you can read the standard behind it. The dominant mechanical-risk standard is EN 388:2016+A1:2018, printed as a pictogram followed by up to six characters: abrasion, coupe cut, tear, puncture, then a letter for the ISO 13997 cut test, then an optional P for impact. The table below gives the exact performance thresholds, so a marking can be translated into measured protection.

The fifth character in EN 388:2016 reports the ISO 13997 TDM straight-blade cut test on a letter scale: A is 2 N, B is 5 N, C is 10 N, D is 15 N, E is 22 N, and F is 30 N. This test was added because high-performance yarns dull the rotating coupe blade and make the older coupe index unreliable; when that happens, the coupe field prints X and the TDM letter governs. A sixth character P, if present, means the glove passed the EN 13594 impact test, where the mean transmitted force must be 7.0 kN or less.

In North America, ANSI/ISEA 105-2024 classifies cut resistance on a nine-level A1 to A9 scale measured by ASTM F2992 in grams of force. The table below shows the cut bands. ANSI 105 also rates abrasion on a 0 to 6 scale and puncture on a 1 to 5 scale (10 to 150 N), plus a separate needlestick puncture rating to ASTM F2878. EN and ANSI cut numbers cannot be converted directly because the test geometry differs, so match each to the specific hazard.

For chemical hazards, EN ISO 374-1:2016 classifies gloves as Type A (resists at least six of the defined test chemicals at level 2), Type B (at least three), or Type C (at least one chemical at level 1, meaning a 10 minute breakthrough). Breakthrough time is measured to EN 16523-1 on a six-level scale where level 1 is 10 minutes, level 2 is 30 minutes, and level 6 is 480 minutes or more. The companion EN ISO 374-5 covers micro-organism protection, and the VIRUS marking is added when the glove also passes ISO 16604 viral penetration.

Thermal protection uses two standards. EN 407:2020 rates six properties from flame spread through contact heat (with contact at 100, 250, 350, or 500 degrees C for levels 1 to 4), convective heat, radiant heat, and small or large molten-metal splash, each on its own level. EN 511:2006 rates cold in three fields: convective cold, contact cold, and water penetration. Underpinning all of these, EN ISO 21420:2020 sets the general requirements every protective glove must meet, including sizing, dexterity, and material innocuousness limits such as pH between 3.5 and 9.5 and hexavalent chromium below 3 mg/kg in leather.

Key Specification Parameters

Beyond the headline pictograms, a glove datasheet lists construction details that quietly decide whether the glove fits the task and the wear cycle. The parameters below are the ones that change the buying decision in practice, and they are explained so a spec sheet can be read line by line rather than guessed at.

Gauge describes how fine the knit is, measured in needles per inch. A lower gauge (7 or 10) means a thicker, more rugged glove with coarser feel, while a higher gauge (13, 15, or 18) means a thinner, more dexterous glove. For a given cut level, a higher gauge glove costs more but lets the worker keep more tactility, which matters on precision lines. Cuff style affects donning and contamination: a knit-wrist cuff keeps debris out for general handling, a safety cuff or gauntlet gives faster removal and forearm coverage, and a long gauntlet is required for chemical decanting so liquid cannot run inside.

Dexterity level is set by EN ISO 21420:2020 from level 1 to 5 by the smallest steel pin the wearer can pick up, where level 5 corresponds to a 5 mm pin and indicates fine manipulation. Thin PU-coated 15 or 18 gauge gloves usually reach level 5, while thick chemical or foundry gloves may sit at level 1. Coating coverage (palm, three-quarter, or full dip) trades grip and liquid resistance against breathability: a palm dip breathes and stays cool but leaves the back exposed, while a full dip seals the glove for liquid work but traps heat.

Thickness matters most for disposable and chemical gloves. Single-use nitrile gloves typically run 3.5 to 4 mil at the palm with reinforced fingertips around 5 to 6 mil; thicker disposables resist tearing and chemical breakthrough longer but reduce feel. The barrier integrity of disposables is set by the Acceptable Quality Level (AQL): a lower AQL means fewer permitted pinhole defects. Examination-grade and chemo-rated gloves are inspected at AQL 1.5 or tighter, standard medical exam gloves at AQL 2.5, and general industrial gloves often at AQL 4.0 or higher.

For chemical gloves, the governing numbers are permeation breakthrough time against your specific chemical and the degradation rating, not a generic chemical label. A glove that resists one acid may dissolve in a solvent, so the manufacturer's permeation chart, keyed to the exact chemical, concentration, and temperature, is the only reliable basis for selection. The chemical letter codes printed under the EN ISO 374 pictogram tell you which of the standard test chemicals were passed at level 2.

Finally, several markings are easy to miss but decisive. The standard pictograms and their performance characters must be printed on the glove itself, not only the box, under EN ISO 21420. Sizing follows the EN ISO 21420 hand-size system numbered roughly 6 to 11; a glove sized too large loses grip and becomes a snag hazard near rotating machinery, and a glove too small fatigues the hand and is removed. The category marking (I, II, or III) tells you whether the glove was independently type-examined, which Category III chemical and high-heat gloves always require.

Selection Decision Factors

To turn the preceding chapters into a specific glove, follow the decision sequence below. Most selection mistakes come not from a single wrong step but from skipping the hazard assessment and jumping to a brand or a price. These steps double as a fixed RFQ template that a notified body would expect to see behind a Category III purchase.

1. Identify the dominant hazard: Run a task-by-task hand-hazard assessment and rank the hazards (cut, abrasion, puncture, chemical, heat, cold, impact, biological). Select the standard that matches the dominant hazard first; secondary hazards refine the choice but do not override it.
2. Set the required performance level: Translate the hazard into a target level, for example EN 388 cut level D or ANSI A4 for sheet-metal handling, or EN ISO 374 Type A for varied chemical decanting. Do not default to the highest number; over-rating costs dexterity and money.
3. Match material and coating: Choose the liner yarn for the cut and heat ceiling, and the coating for grip in the actual surface condition (dry, oily, wet). For chemicals, select against the specific permeation chart, never a generic label.
4. Fix dexterity and gauge: Precision assembly needs dexterity level 4 or 5 and a 15 or 18 gauge glove; heavy handling tolerates level 1 to 2 and a 7 or 10 gauge glove. The right gauge is the highest the protection level allows.
5. Specify cuff, length, and size range: Knit wrist for general handling, safety cuff for fast removal, gauntlet for chemical and forearm exposure. Stock the EN ISO 21420 size range (6 to 11) the workforce actually needs.
6. Confirm certification and category: Verify the printed pictograms match the datasheet, the declaration of conformity is current, and Category III gloves carry the notified body number. For food contact, check the relevant food-safe declaration as well.
7. Plan the wear cycle and changeout: Decide single-use versus reusable, set a visual changeout rule (cuts, abrasion through the coating, chemical swelling), and budget the per-shift glove count. Disposables and coated knits have very different cost-per-shift profiles.
8. Cost per protected hour, not per pair: A glove that costs less per pair but tears or wears in an hour can cost more per protected hour and expose the worker between changes. Compare laundering, reuse cycles, and injury-avoidance value, not just unit price.

One last commonly overlooked dimension is supplier serviceability and consistency: stable article numbers, lot-to-lot consistency, published and current EN conformity for each article, sample availability for wear trials, and reliable stock of the exact size mix. These seem irrelevant at the quoting stage but determine whether the glove that passed the trial is the same glove that arrives six months later. Established makers such as Ansell (HyFlex family), SHOWA (451 thermal, 660 chemical), and HexArmor publish per-article EN 388:2016, EN ISO 21420:2020, and where relevant EN 407:2020 or EN ISO 374 conformity, which makes their datasheets straightforward to audit before a large standardisation order.