Oil and solvent resistance is one of the most misunderstood specifications in the glove catalogue. Two gloves can look identical, carry the same "chemical resistant" claim, and behave completely differently after twenty minutes of contact with the same fluid. This guide explains how oil and solvent resistant gloves are actually classified under the current European standards, where suppliers commonly overstate performance, and what a buyer should demand in writing before placing a bulk order.
Most glove catalogues group everything under a single "chemical protection" heading, which is where procurement mistakes begin. The fluids an industrial buyer actually deals with fall into broad families that behave very differently against polymer films:
A glove marketed as "oil resistant" tells you nothing about its behaviour against toluene. For a buyer, the practical consequence is simple: the specification has to be written around the actual fluid list at the workstation, not around a generic product title. Where a facility uses more than one fluid family, the honest answer is often two or three different glove specifications rather than one compromise glove.
The European framework for chemical protective gloves was restructured into the EN ISO 374 series. The parts that matter at the purchasing desk are:
Permeation itself is measured under EN 16523-1, which records the time for a chemical to break through the glove material under continuous liquid contact. The measured breakthrough time is then converted into one of six performance levels. This is the number that actually drives change-out policy on the shop floor.
| Performance level | Breakthrough time (continuous contact) | What it means in practice |
|---|---|---|
| Level 1 | > 10 minutes | Incidental splash only; not a working exposure glove |
| Level 2 | > 30 minutes | Short, controlled contact tasks |
| Level 3 | > 60 minutes | Moderate handling; requires a defined change-out rule |
| Level 4 | > 120 minutes | Extended contact with planning and supervision |
| Level 5 | > 240 minutes | Sustained immersion tasks |
| Level 6 | > 480 minutes | Highest measured resistance; still not indefinite |
EN ISO 374-1 then defines the three glove types that appear on the marking. The type is determined by how many chemicals from the standard's reference list the glove has been tested against, and to what level:
| Type | Requirement under EN ISO 374-1 | Selection implication |
|---|---|---|
| Type A | Permeation level ≥ 2 for at least six chemicals from the reference list | Broad-spectrum claim; the six (or more) code letters are printed under the shield |
| Type B | Permeation level ≥ 2 for at least three chemicals from the reference list | Targeted protection for a defined fluid group |
| Type C | Permeation level ≥ 1 for at least one chemical from the reference list | Minimum claim; narrowest assurance |
The reference list itself contains eighteen chemicals, each assigned a code letter — for example acetone, toluene, n-heptane, sodium hydroxide solution and sulphuric acid appear under their own letters. A glove marked "Type A / AJKLPT" has been tested against those specific substances at level 2 or better. It has not been tested against everything else in your plant. This is the single most common misreading of chemical glove marking in tender documents.
Material selection is a trade-off between chemical performance, mechanical durability, dexterity and cost. The table below summarises how the main polymer families normally behave. It is directional guidance for shortlisting — final selection must be confirmed against permeation data for the exact chemical, concentration and temperature concerned.
| Material | Oils & greases | Aliphatic solvents | Aromatic solvents | Ketones / esters | Acids & caustics |
|---|---|---|---|---|---|
| Nitrile | |||||
| PVC | |||||
| Neoprene | |||||
| Butyl | |||||
| Viton / fluorocarbon |
Some practical consequences of that table, drawn from how these materials are used in the field:
Nitrile is the workhorse of oil resistance. It holds up well against mineral oils, greases, hydraulic fluids and most fuels, keeps good flexibility, and can be produced as a thin disposable or a heavyweight supported gauntlet. Its weakness is polar and aromatic solvents: thin nitrile disposable gloves are routinely misused for acetone or toluene work, where breakthrough can be a matter of minutes. Where nitrile is used for solvent handling, it should be a heavy-gauge supported type with confirmed test data, not a 4-mil examination glove.
PVC gloves are inexpensive, resistant to oils and greases, and comfortable for long wear in wet or oily environments. They are also the classic budget option for food processing and light cleaning. Against aromatic and oxygenated solvents their performance is poor, and plasticiser migration over time can stiffen the film and reduce its protective life. For procurement teams under cost pressure, PVC is a sensible choice for oil-only exposure — and a false economy for solvent exposure.
Neoprene offers a broader mid-range profile and reasonable mechanical toughness, often used in mixed oil-and-acid environments. Butyl is one of the better general performers against ketones and esters, though it is weak against petroleum hydrocarbons — the opposite of nitrile. Fluorocarbon (Viton) materials give the widest resistance across solvent families but carry a substantial cost premium and are normally reserved for narrow, high-risk tasks. For further detail on the flatter side of this family, see our guide to chemical resistant rubber gloves and the companion piece on chemical splash gloves.
These two words describe different failure modes, and conflating them is the root of most chemical glove incidents.
Permeation is the process by which a chemical migrates through the glove material at a molecular level — absorbing on the outer surface, diffusing through the polymer, and desorbing against the skin. There is no visible damage. The glove looks and feels normal while the substance is already in contact with the wearer. Breakthrough time is the moment the permeation rate reaches the detection threshold, and it is the number reported under EN 16523-1.
Degradation is the physical deterioration of the material itself: swelling, hardening, cracking, shrinkage or discolouration after chemical exposure. It is assessed under EN ISO 374-4, which measures the change in puncture resistance after contact and reports the result as a percentage rather than a pass/fail grade.
The critical point for buyers is that the two results are independent and can diverge sharply. A glove can show negligible degradation — no swelling, no visible change — while still exhibiting a short breakthrough time for the same chemical. Because degradation is visible and permeation is not, wearers tend to trust a glove that still looks intact. That instinct is exactly wrong for solvent work, and it is why the purchase specification should be anchored on permeation levels rather than on appearance or durability claims.
Temperature compounds the problem. Permeation rates increase as temperature rises, so a glove rated at level 4 under laboratory conditions may perform considerably worse on a hot line, in a plating bath, or in a closed vehicle during summer. Suppliers rarely volunteer this caveat; the buyer should ask directly whether the reported levels were measured at the standard test temperature and what the expected shift is at the operating temperature of the task.
Chemical performance is only one axis of the specification. A glove that resists the chemical perfectly but is the wrong length or finish will still fail — because the wearer removes it, works around it, or soaks their forearm instead of their hand.
The mechanical risk side of the specification is covered by EN 388:2016+A1:2018, which is worth reading alongside the chemical data if the task involves sharp parts or abrasive components. Our overview of disposable nitrile gloves and the wholesale nitrile sourcing guide covers how gauge and finish interact with duty cycle for thinner products.
This is where most sourcing risk sits. Chemical glove claims are easy to make and relatively hard to audit, so the verification process should be concrete and document-based.
Standards bodies publish the underlying requirements and test methods and are the correct reference point when a supplier's interpretation is disputed: the International Organization for Standardization for the EN ISO 374 series and the ASTM International for test methods such as ASTM D471 (rubber properties after liquid immersion) and ASTM F739 (permeation of liquids through protective materials). In North America, the Occupational Safety and Health Administration publishes the hand protection requirements that underpin selection and use, and the National Institute for Occupational Safety and Health provides supporting research and guidance on protective clothing performance.
A breakthrough time is measured under continuous contact in a laboratory. In real use, gloves are removed and replaced, contaminated on the outside, and worn in warmer or colder conditions than the test bench. The practical rule used across the industry is to treat the measured breakthrough time as an upper bound and set the change-out interval well inside it — commonly at one half, and for aggressive chemicals at one third, of the reported time.
Worked example: a glove shows level 3 performance (> 60 minutes) against the solvent in use. Halving gives a 30-minute replacement interval; taking a third gives 20 minutes. Whichever the site adopts, it should be written into the work instruction, not left to operator judgement, and supported by a simple replacement log or a fixed-interval routine tied to the shift pattern. Where exposure is intermittent rather than continuous — occasional splash contact, for example — the same principle applies to accumulated contact time over the task, not to the length of the shift.
Two further controls materially reduce risk and are frequently absent from tender documents: removal of contaminated gloves before handling anything that will touch food or skin, and correct doffing technique so the contaminated outer surface never contacts the forearm. Neither is a purchasing issue, but both are worth specifying as training requirements in the supply agreement if you are supplying an end user under your own brand.
Chemical gloves are consumed in a different pattern from general-purpose work gloves. Because change-out intervals are short, and because a fitted glove is more likely to be worn correctly than a loose one, the size curve matters more than it does for a general handling product.
None of this changes the underlying physics: the glove has to be matched to the fluid, the temperature and the contact duration. Everything else — the price, the pack, the brand — is secondary to that match. For buyers building a programme from scratch, our overview of latex coated gloves and latex dipped gloves is a useful comparison point where the exposure is oily rather than solvent-based and a more flexible, lower-cost film is acceptable.
Oil resistant gloves are formulated to resist petroleum-based oils, greases and fuels — non-polar fluids with relatively large molecules. Solvent resistant gloves must additionally resist aromatic, chlorinated and oxygenated solvents such as toluene, dichloromethane and acetone, which are smaller and permeate common films far more quickly. Nitrile is a strong oil glove but a limited solvent glove; the two claims should be specified separately.
The type reflects how many chemicals from the standard's reference list the glove achieved a permeation level of 2 or above against. Type A requires at least six chemicals, Type B at least three, and Type C at least one at level 1 or above. The type describes the breadth of testing, not the thickness or overall strength of the glove, and it says nothing about chemicals that were not tested.
No. Increasing thickness generally extends breakthrough time and improves mechanical durability, but it also reduces dexterity and increases heat build-up, which encourages early removal. For aggressive solvents the correct fix is usually a different polymer — butyl, fluorocarbon or a laminate film — rather than more of the same material. Material selection comes before thickness selection.
Set the interval from the measured breakthrough time, and then shorten it. Industry practice is to replace at one half of the reported breakthrough time, or at one third for aggressive chemicals. A glove with level 3 performance (> 60 minutes) against the chemical in use would therefore be replaced at roughly 30 minutes, or 20 minutes under the more conservative rule. The interval should be written into the work instruction and monitored.
Only in limited circumstances. Thin examination-grade nitrile provides very short breakthrough times against most aromatic and oxygenated solvents. Where solvent contact is incidental and brief, a heavier supported nitrile may be acceptable if supported by test data; where there is any immersion or sustained contact, a purpose-selected solvent glove is required. Disposable gloves should never be reused after solvent contact.
At minimum: the permeation test report listing the tested chemicals and levels achieved, a valid EU type-examination certificate from a notified body, the EU Declaration of Conformity, and batch or lot traceability on the packaging. For serious exposure, add an independent laboratory permeation test against your own chemical at your operating temperature, and a factory audit report if you are buying in volume.
Send us your fluid list, contact conditions and target volumes. We will come back with a material recommendation, the supporting test documentation and FOB pricing for your market.
Get Wholesale Pricing →Or email info@expedsafety.com with your application details and we'll recommend the right product.
© 2026 Expedition Safety — Industrial PPE sourced from verified Chinese manufacturers. CE / ANSI certified. Browse all products →