How to Care for Acetate Sunglasses: Keep the Polish and Fit

Acetate sunglasses stay glossy and comfortable for years if you look after them in three ways. Keep them away from strong heat, clean them with lukewarm water and a drop of mild soap instead of solvents, and store them folded in a hard case. Most dull, warped or loose frames come from one of those three habits going wrong.

Acetate is a plant-based plastic that is cut from blocks, shaped and then polished by hand. That gives it depth of colour and a soft shine, but it also means it reacts to heat, chemicals and rough handling differently from metal or TR90. Here is a practical routine that fits into a normal summer, holiday or commute.

Why acetate needs slightly different care

A metal frame mostly needs its screws checked. Acetate has a few extra quirks worth knowing:

• It softens with heat. Opticians use this on purpose to adjust temples. A hot car or a radiator can do the same thing by accident.
• The shine is a surface finish. Harsh cleaners, alcohol wipes and abrasive cloths can slowly take the gloss away.
• Skin products touch it all day. Sunscreen, hair spray and perfume leave residue on the temples and around the bridge.
• Thick fronts carry weight. Bold acetate frames put more load on hinges, so loose screws show up sooner.

None of this makes acetate fragile. It simply rewards a few easy habits.

Heat: the number one cause of a frame that suddenly fits wrong

If your sunglasses felt perfect in spring and slip down your nose by August, heat is a likely suspect. Acetate that sits for hours on a dashboard, on the back shelf of a car or next to a sunny window can relax and open up at the temples.

• Never leave sunglasses on the dashboard or in a parked car on a warm day. Take them with you or put them in the glovebox inside a case.
• Keep them away from radiators, hair dryers and saunas.
• On the beach, put them in the shade or in your bag rather than face-up on a hot towel.
• Do not try to bend a cold acetate temple back into shape. It can crack. A local optician can warm and reshape it properly.

Cleaning acetate sunglasses without dulling them

A quick daily wipe and a proper rinse once or twice a week is enough for most people.

1. Rinse the frame and lenses under lukewarm (never hot) running water to remove sand and dust before anything touches the lenses.
2. Rub a tiny drop of mild, lotion-free dish soap over the front, temples and nose area with your fingertips.
3. Rinse again and shake gently.
4. Dry with a clean microfibre cloth, starting with the lenses, then the frame.

Pay extra attention to the temple tips and the bridge, where skin oils and sunscreen build up. A soft toothbrush with soapy water works well around rivets and hinges.

Do and avoid at a glance

Situation	Do	Avoid
Daily cleaning	Microfibre cloth, lukewarm water, mild soap	T-shirts, paper towels, alcohol wipes
Stubborn residue	Soft toothbrush with soapy water	Nail polish remover, window cleaner
Summer days	Case in the shade or in your bag	Dashboard, hot sand, back shelf of the car
Taking them off	Two hands, fold the left temple first	Pulling off one-handed, pushing onto your head
Fit feels loose	Tighten hinge screws or ask an optician	Bending cold temples by hand

Storage habits that keep the shape

Pushing sunglasses up onto your head feels natural, but it stretches the temples a little every time. Over a season that adds up to a looser fit. The same happens when they hang from a shirt collar by one temple.

A hard case is the best place for them whenever they are not on your face. Fold them before they go in, and place them lenses up if you ever have to set them down on a table. If you carry several pairs, give each one its own case or pouch so the fronts do not rub against each other.

Hinges, screws and the fit over time

Many acetate sunglasses, including Shelton and Antilla, use spring hinges that flex as you put them on. They still benefit from a quick check every few weeks:

• Open and close each temple. If it flops loosely, the hinge screw has probably worked itself loose.
• A small eyeglass screwdriver and a quarter turn is usually all it takes. Do not overtighten.
• If the frame sits crooked or presses behind the ears, have it adjusted rather than living with it. See our frame size guide to compare your current fit with the measurements printed on the temple.

Bringing back a tired-looking frame

Acetate that looks cloudy or slightly dull is often just coated with a film of skin oil and product residue. A careful wash with soapy water, as above, brings back much of the shine. Light surface marks on the frame can be softened by a professional polish at an optician. Scratches on the lenses are a different story: once they are there, they stay, which is why rinsing off sand before wiping matters so much.

If you wear prescription sun lenses, the same routine applies. Treat coated lenses gently and keep them in their case. Our FAQs cover common questions about lenses and orders.

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Frequently asked questions

Can I clean acetate sunglasses with alcohol wipes?

It is better not to make it a habit. Alcohol and other solvents can slowly dull the polished surface of acetate. Lukewarm water, a drop of mild soap and a microfibre cloth are gentler and just as effective.

Why are my acetate sunglasses suddenly loose?

The two usual causes are heat and wearing them on top of your head. Both stretch the temples. A loose hinge screw can also make the frame feel wobbly. An optician can reshape the temples safely with gentle heat.

Is it safe to rinse acetate frames under the tap?

Yes, as long as the water is lukewarm rather than hot. Rinsing first is actually the best way to remove sand and grit before you wipe the lenses.

How often should I check the hinge screws?

Every few weeks is plenty for most people. Check sooner if you notice the temples opening more freely than usual.

Find acetate sunglasses worth looking after

A well-made acetate frame can be your summer pair for many seasons with the simple habits above. Browse our acetate frames, explore all sunglasses or go straight to prescription sunglasses. Add your prescription in a few clicks with our lens selector.