How to Store and Maintain a Hard Hat

Store it where heat, sun and chemicals can't reach it

Plastic shells age faster when they are hot, and sunlight breaks down many plastics over time. The best spot is a clean, dry, shaded place with a steady temperature, like a locker, a shelf in a tool room or a hook inside a cabinet.

The most common mistake is leaving a hat in a parked vehicle. A closed car in the sun gets far hotter than most shells are built to handle. For example, one full brim ABS hat on our spec sheets lists a heat rating of only 140°F, the lowest we compare. Other models list 350°F, but that figure describes radiant heat exposure on the job, not months of baking behind a windshield.

Keep the hat away from solvents, fuel, paint thinner, cleaning sprays and battery acid. Fumes and splashes can weaken some shell materials without leaving any visible mark.

• Store it upright or on a hook so the suspension keeps its shape.
• Never put it on a dashboard, a rear window shelf or a truck bed.
• Keep it away from chemical containers and heaters.
• Don't stack heavy tools or gear on top of it.
• Give it its own spot so it doesn't get crushed or tossed around.

Clean the shell and the liner the right way

Wash the shell with mild soap, warm water and a soft cloth or sponge. Rinse it and let it air dry. Avoid harsh solvents, strong detergents and abrasive pads, since they can dull or weaken the surface.

Many hats let you detach the suspension and headband for cleaning. Some makers also sell replaceable brow pads and headbands. Ridgeline's listings, for instance, mention replaceable brow pads, suspensions and headbands. AFP lists a washable sweatband on its Class G full brim model.

So can you wash a hard hat liner? Usually yes, if the maker says the part is washable. Take it out, hand wash it in mild soap and lukewarm water, rinse well and air dry it completely. Do not use a dryer, a heater or direct sun to speed things up. Heat can warp the straps and foam. If the maker doesn't say a part is washable, replace it instead of washing it.

Inspect it before every shift

A quick check takes a minute and catches most problems early. Look at the shell in good light, then flex it gently with your hands and look at the suspension.

Stop using the hat if you find any of these:

• Cracks, dents, gouges or holes in the shell
• A chalky, faded or sticky surface, which can signal sun or chemical damage
• Brittle, frayed or cracked suspension straps
• A ratchet that slips or won't hold its setting
• Torn or missing suspension attachment points
• Any sign of burns or melting

Know when to replace it

Replace the whole hat after a serious impact, even if it looks fine. The shell may have absorbed energy and lost strength you can't see. Also replace it if it fails an inspection or if you can't tell what has been done to it.

For routine replacement, follow your maker's guidance. Suspensions wear out faster than shells because they take sweat and daily handling, and many makers sell replacement suspensions for that reason. Check the manual or the maker's site for their recommended intervals.

Shells usually carry a date code. On the MSA Skullgard models we compare, the code is molded under the brim and shows the year and month the shell was made. The listing notes that this date does not mark the end of the service life, because service life begins when the hat is put into service. Write the in-service date somewhere safe, such as a tag in your locker, so you can track it.

When you do buy a new one, our best hard hat comparison lines up ANSI type, electrical class, weight and heat rating side by side.

Avoid decals, paint and homemade changes

Many people ask why you should avoid applying decals to a hard hat. The adhesives and solvents in stickers can attack the shell material, and a sticker can hide cracks and gouges you would otherwise spot during inspection. The same goes for paint. Paint thinners and carrier solvents can weaken some plastics, and a coat of paint covers the surface you need to see.

Can you paint hard hats? Only if the maker says a specific paint is safe for that shell. Otherwise, leave it alone. Drilling holes, cutting vents or adding metal hardware can also compromise the shell and can change its electrical protection.

If you need to identify your hat, use a maker-approved label or a removable tag. Some makers sell reflective and retro-reflective stripes made for their own helmets. MSA's listing mentions such options for its Skullgard line. Ask the maker before you add anything else.

A quick safety note: a hat's electrical class applies to an unmodified shell. Class G is for general use, Class E is for higher voltage work and Class C offers no electrical protection. Adding metal parts or damaging the shell can undo that rating, so never rely on a modified hat near live conductors.

A quick care routine

Here is a simple schedule you can adapt to your site rules and your maker's instructions.

Different care tasks need different timing, so the table below groups them.

Frequently asked questions

Can I leave my hard hat in my truck overnight?

It is better not to. Cabs can get very hot in daytime sun and very cold at night, and repeated swings are hard on plastic. Bring the hat inside or keep it in a shaded, closed storage box.

Is it okay to share a hard hat?

It's best to have your own, since the fit depends on the suspension setting and sweat soaks into the liner. If you must share, use a clean, separate liner or sweatband for each person.

Can I use a hard hat after dropping it?

A short drop onto a soft surface may leave no damage, but inspect it closely. If you see any cracks, dents or a loose suspension, replace it. After a hard drop or a hit from a falling object, replace it either way.

Should I use a hard hat bag or case?

A ventilated bag or hook keeps dust and impact off the shell. Avoid sealed plastic that traps moisture, and never store the hat with fuel, solvents or tools that could scratch it.