Heavy duty nitrile gloves are not the thin blue ones from the hospital. They are thick, reusable industrial gloves built to stop chemicals, oils, and physical abuse. If you need help choosing across all glove types, start with our complete heavy duty work gloves guide. This article focuses on nitrile — what the ratings mean and what to buy.
Nitrile is a man-made rubber. It contains no latex. That matters because latex allergies are common on UK worksites. The HSE recommends nitrile as a safer alternative. It also beats latex on chemical resistance and durability.
The problem? Most nitrile content online covers disposable exam gloves. This guide covers the other kind — the reusable, heavy-wall gloves used in chemical handling, motor vehicle repair, and tough trade work.
What makes a nitrile glove heavy duty?
Thickness is the first thing to check. Glove thickness is measured in mil — one mil is one thousandth of an inch. Disposable nitrile runs at 4–6 mil. Heavy duty reusable nitrile starts at 9 mil and goes up to 15 mil or more.
Thicker means more protection. But it also means less feel in your fingers. For most chemical and mechanical work, 9–12 mil is the sweet spot.
You also need to pick the right format:
- Knit-wrist gloves — suit general handling and assembly work
- Gauntlet-style gloves — extend up the wrist or forearm; better for splash risk
- Flock-lined — cotton lining inside; more comfortable for all-day wear
- Unlined — thinner feel, easier to clean, better chemical resistance
For chemical work, unlined or smooth-lined gauntlets are usually the right call. Flock lining can absorb chemical splashes if the glove gets breached.
Nitrile vs latex vs rubber: which wins for work?
Latex is strong and flexible. But it causes allergic reactions in some people. Repeated exposure can make the allergy worse over time. The HSE flags this clearly — if a worker develops a latex allergy, they may not be able to continue the job.
Nitrile removes that risk entirely. It contains no latex. It also holds up better against oils, fuels, and many common industrial chemicals. For most trade and chemical work, nitrile is the smarter choice.
Natural rubber gauntlets still have a place. They perform well against some caustic chemicals. But for most UK workplaces, nitrile covers more hazards with less allergy risk. Browse our heavy duty rubber gloves collection if you need to compare options.
Vinyl is cheaper but weaker. It tears more easily and offers less chemical resistance. Vinyl suits light contamination work. For heavy duty chemical or trade use, nitrile is the better option.
EN 374 chemical resistance: what the types actually mean
EN ISO 374-1:2016 is the UK standard for chemical-resistant gloves. It sorts gloves into three types based on how well they block chemicals — and for how long.
The key concept is breakthrough time. That is how long it takes a chemical to pass through the glove material and reach your skin. The longer, the better. Here is what each type means:
- Type A — blocks at least 6 chemicals for 30 minutes or more each. Strongest protection.
- Type B — blocks at least 3 chemicals for 30 minutes or more each. Good for most chemical handling jobs.
- Type C — blocks at least 1 chemical for 10 minutes or more. Minimum protection level.
The standard tests against 18 chemicals, each with a code letter (A = methanol, B = acetone, K = sodium hydroxide, L = sulphuric acid, and so on). The glove's label shows which chemicals it was tested against. Always check the label matches your actual chemicals.
No nitrile glove resists everything. Nitrile handles oils, fuels, many acids, and alkalis well. It has weaker resistance against ketones (like acetone) and aromatic solvents (like toluene). Check the manufacturer's compatibility chart for your specific substance.
For UK buyers: look for gloves carrying UKCA or CE marking with a notified body number. Chemical-resistant gloves are PPE Category III — the highest risk category. That means they must pass independent testing, not just self-certification.
Ansell Solvex 37-675 Chemical Resistant Nitrile Gloves 330mm
Portwest AP36 Nitrile Chemical Gauntlet 18 Gauge Double Dipped Work Gloves
EN 388 mechanical ratings: abrasion, cut and puncture
EN 388:2016 covers physical hazards — the rubs, cuts, tears, and stabs that happen on a worksite. Many heavy duty nitrile gloves carry both EN 374 and EN 388 ratings. That combination is worth looking for.
The EN 388 score shows four numbers and sometimes a letter. Here is what each one means:
- Abrasion (1–4) — how many rub cycles the palm survives. Level 4 = 8,000 cycles. A Level 1 glove gives up at 100.
- Cut (1–5) — the Couptest blade index. Higher is tougher.
- Tear (1–4) — force needed to tear the glove. Level 4 = 75 Newtons.
- Puncture (1–4) — force to poke through. Level 4 = 150 Newtons.
A fifth character (A–F) appears on newer gloves. That is the ISO 13997 cut test — a sharper, more accurate blade test. Level D means the glove stops a 15-Newton blade. Level E stops 22 Newtons. For sharp-edge work alongside chemical exposure, look for Level C or above.
For most chemical-handling jobs, abrasion and puncture matter most. A glove that resists splash but tears on a sharp edge is a problem.
UCi Armanite Heavy Weight Nitrile Coated Work Gloves Blue Level B Cut Protection
One thing nitrile won't do: heat resistance
This is the mistake buyers make most often. Nitrile has no heat resistance. Standard nitrile gloves carry no EN 407 rating — the standard that covers thermal and contact heat hazards.
Working near hot surfaces, open flame, or molten material in nitrile gloves will not keep you safe. The glove may melt or deform. That is a serious risk. For any job that combines chemical and heat hazards, you need a different glove entirely.
Which jobs need heavy duty nitrile?
Nitrile is a strong all-rounder for trade and industrial work. Here are the jobs it suits best.
Motor vehicle repair
The HSE specifically recommends nitrile for the MVR sector. Mechanics handle engine oils, brake fluid, fuels, degreasers, and paints. Nitrile stands up to all of these. It also helps prevent dermatitis — a real occupational risk for mechanics. Look for an extended cuff to cover the wrist when working under a vehicle.
Showa 265R Nitrile Coated Work Gloves Oil Resistant Assembly Gloves
Chemical handling and processing
For regular chemical work, a Type B or Type A glove is the right choice. Check breakthrough time against your specific chemicals. Gauntlet length matters here — wrist-length gloves leave the forearm exposed to splashes.
Cleaning and janitorial
Cleaning chemicals — bleach, caustic cleaners, disinfectants — eat through thin gloves fast. Heavy duty nitrile holds up. A flock-lined pair is more comfortable for all-day cleaning work.
Construction and general trade
On site, nitrile coated work gloves give good grip in wet and oily conditions. They also resist concrete and mortar chemicals. Look for EN 388 Level 3 abrasion or above for rough handling work.
Safe T Nitrile Fully Dipped Work Gloves Yellow Cotton Liner Knitwrist
Not every job needs a reusable pair. If you go through gloves quickly, or the contamination risk is light, our heavy duty disposable gloves guide may point you in the right direction. Browse the heavy duty disposable gloves collection to compare options.
How to choose the right heavy duty nitrile glove
Use this checklist before you buy.
- Identify your chemical. Check the product's safety data sheet. Then check the glove manufacturer's chemical compatibility chart. Do not guess.
- Pick your EN 374 type. Regular chemical contact needs Type B minimum. Heavy or prolonged exposure needs Type A.
- Choose the right length. Wrist-length gloves suit dry assembly work. Gauntlets are better for splash risk or immersion.
- Lined or unlined? Flock-lined for comfort on long shifts. Unlined for better chemical resistance and easier cleaning.
- Check EN 388 if mechanical hazards are present. Look for Level 3+ abrasion if the job is rough. Add a cut score if sharp edges are involved.
- Look for UKCA or CE Category III marking. This confirms the glove has passed independent third-party testing.
Frequently asked questions
Are heavy duty nitrile gloves reusable?
Yes. Heavy duty nitrile gloves are built to be used more than once. Replace them when you spot holes, tears, or any sign of chemical breakthrough — for example, discolouration, stiffening, or a chemical smell inside the glove. There is no fixed replacement schedule. It depends on use and what you are handling.
How long do heavy duty nitrile gloves last?
There is no fixed answer. A glove used daily with harsh solvents may last a week. One used occasionally for light chemical handling may last months. Check for physical damage and breakthrough signs after every use. Store gloves in a cool, dry place away from direct sunlight to extend their life.
Are nitrile gloves heat resistant?
No. Standard nitrile gloves carry no EN 407 heat resistance rating. Do not use them near hot surfaces, flames, or molten materials. For work that combines chemical and heat hazards, you need a different glove entirely.
Nitrile vs latex — which is better for chemical work?
Nitrile wins for most UK chemical work. It contains no latex, so it carries no allergy risk. It also resists oils, fuels, and many acids better than latex. The HSE recommends nitrile as a safer alternative to latex gloves in the workplace. Natural rubber latex still has a role with some caustic chemicals, but for most jobs nitrile is the better all-round choice.
What is breakthrough time on a nitrile glove?
Breakthrough time is how long it takes a chemical to pass through the glove material and reach your skin. It is measured in minutes. A Type A glove must achieve 30 minutes or more breakthrough time against at least 6 chemicals. A Type C glove only needs 10 minutes against 1 chemical. The longer the breakthrough time, the safer the glove for that substance.
What EN 374 type do I need for my job?
It depends on what you are handling and for how long. For occasional contact with mild chemicals — cleaning products, light oils — Type C is a starting point. For regular or prolonged contact with industrial chemicals, use Type B as a minimum. If you handle aggressive substances or work for long periods without removing your gloves, go for Type A. Always cross-check the specific chemicals you use against the glove manufacturer's compatibility chart.