Latex gloves protect against many chemicals, but not all of them. They offer excellent resistance to most acids, bases, and water-based solutions, yet they break down quickly when exposed to organic solvents like acetone, benzene, and chloroform. The answer depends entirely on which chemical you’re working with.
How Chemicals Get Through a Glove
A chemical doesn’t need to tear or puncture a glove to reach your skin. There are three distinct ways it can get past the barrier. The first is degradation: the chemical reacts with the glove material itself, causing it to swell, shrink, stiffen, or lose elasticity. You can often see or feel this happening. The second is penetration, where the chemical flows through tiny pinholes, seams, or gaps in the material.
The third, and most dangerous, is permeation. This is when chemical molecules absorb into the outer surface of the glove, diffuse through the material at a molecular level, and emerge on the inside against your skin. Permeation can happen with no visible change to the glove at all. It looks and feels perfectly intact while chemicals are silently passing through.
Every glove-chemical combination has a “breakthrough time,” which is the number of minutes before the chemical is detectable on the inner surface. For chemicals that latex resists well, this time can be hours. For chemicals it resists poorly, breakthrough can happen in minutes.
Chemicals Latex Handles Well
Latex excels against a broad range of acids, alkalis, and water-based solutions. According to EPA chemical resistance data, natural rubber latex earns an “excellent” rating for hydrochloric acid (37%), phosphoric acid (85%), nitric acid (10%), perchloric acid (70%), caustic soda and sodium hydroxide (50%), and oxalic acid. It also rates excellent for ethylene glycol, ammonium sulfate, and sodium sulfate.
Sulfuric acid, even at concentrations up to 93%, gets a “good” rating. So does hydrofluoric acid at 48%, isopropyl alcohol, and propyl alcohol. For most dilute acids and bases you’d encounter in a laboratory or industrial setting, latex provides reliable protection.
Chemicals That Go Right Through Latex
Organic solvents are latex’s weakness. The EPA rates latex as “poor” against a long list of common solvents, including acetone, benzene, toluene, chloroform, dichloromethane, trichloroethylene, and carbon disulfide. Acetonitrile, acrylonitrile, and various acetate compounds also receive poor ratings. Concentrated nitric acid (70%) breaks through latex quickly, even though the dilute form (10%) rates excellent.
The pattern is straightforward: small, nonpolar organic molecules dissolve into natural rubber easily and permeate through it fast. If you’re working with paint thinners, degreasers, fuel-based solvents, or chlorinated compounds, latex gloves are essentially useless. You need nitrile or another specialty glove material for those exposures.
Household Cleaners: A Mixed Bag
Bleach (sodium hypochlorite) gets an “excellent” rating with natural rubber latex, making standard latex gloves a solid choice for cleaning with bleach-based products. Ammonia-based cleaners are a different story. Ammonium hydroxide rates “poor” against natural rubber, meaning ammonia solutions can permeate through relatively quickly. For ammonia-heavy cleaning products, nitrile or neoprene gloves are better options.
How Latex Compares to Nitrile
Nitrile gloves have largely replaced latex in many workplaces, partly because of allergy concerns and partly because nitrile resists organic solvents and oils better. For chemical classes where latex rates poorly (ketones, aromatics, chlorinated solvents), nitrile is the clear winner.
But the comparison isn’t as one-sided as people assume. Research published in the Journal of Occupational and Environmental Hygiene found that when gloves were subjected to repeated hand movements simulating real work conditions, latex actually outperformed nitrile in permeation resistance. Nitrile’s chemical barrier degraded more under movement, while latex remained relatively stable. For exposures lasting longer than 30 minutes with continuous hand activity, latex held up better. The caveat: that study tested only one chemical (ethyl alcohol), so the finding doesn’t apply universally across chemical classes.
The practical takeaway is that the “best” glove depends on three things: the specific chemical, how long you’ll be exposed, and how much you’ll be moving your hands during the task.
Biological Hazards vs. Chemical Hazards
Latex gloves were originally designed as barriers against biological contamination, not chemical exposure. They remain excellent at that job. In studies simulating patient care conditions, latex gloves showed failure rates of only 0% to 4% after manipulation, compared to vinyl gloves, which failed 12% to 61% of the time under the same conditions. Nitrile performed similarly to latex, with failure rates of 1% to 3%.
This distinction matters because “exam grade” latex gloves and “chemical resistant” latex gloves are not the same product. The standard thin exam gloves you’d find in a medical office (typically 4 to 5 mil thick) are designed to block pathogens, not to withstand prolonged chemical contact. Chemical-resistant latex gloves are thicker, often 15 mil or more, and are specifically tested for permeation resistance. If you’re relying on thin disposable latex gloves for chemical protection, you’re getting far less protection than you think.
The Latex Allergy Factor
About 4.3% of the general population has a latex allergy, and among healthcare workers that figure rises to 9.7%. Another 12.4% of healthcare workers show sensitization, meaning they test positive for a latex immune response even without obvious symptoms yet. If you develop itching, redness, or hives from latex gloves, nitrile is the standard alternative and provides comparable or better chemical protection for most applications.
Choosing the Right Glove for the Job
Before using any glove with a chemical, check the manufacturer’s chemical resistance chart for that specific product. These charts list breakthrough times and resistance ratings for dozens of chemicals. General rules of thumb help narrow your search:
- Latex works well for: dilute acids, bases, salts, alcohols, bleach, and water-based solutions
- Latex fails against: ketones (acetone), aromatic solvents (benzene, toluene), chlorinated solvents (chloroform, trichloroethylene), and concentrated oxidizing acids
- Nitrile is better for: oils, greases, fuels, most organic solvents, and ammonia-based cleaners
Thickness matters significantly. A thicker glove extends breakthrough time, but no glove provides permanent protection. All glove materials will eventually allow permeation given enough time and concentration. Replace gloves at regular intervals during extended chemical handling, and never reuse disposable gloves after chemical exposure, even if they look fine. The chemicals you can’t see passing through are the ones that cause the most harm.