Lenses, not just frames
How to Care for Acetate Glasses
Acetate likes soap, hates heat, hates acetone, and likes a case. Treat it like a good plastic, not like metal.
Updated 27 Aug 2026 · 6 min read · how to care for acetate glasses
What acetate is allergic to
Heat above about 60°C. Solvents. Sunscreen sitting in the saddle for a week. Ultrasonic jewellery cleaners at home. The material is cellulose acetate with plasticiser; you can leach the shine out of it.
Water is fine. Swimming in them is fine for the plastic, less fine for the screws and for losing them in a wave. Rinse salt and chlorine the same day.
A weekly five-minute habit
Soap, rinse, dry, check the screws, wipe the saddle where face oil collects. That is it. Polish cloths sold for acetate are optional; a clean microfibre is enough. Do not scrape white salt with a fingernail — soak.
- Case in a bag, not loose with keys
- No dashboard, no sauna, no hairdryer to ‘straighten’
- Optician heat-adjust once or twice a year, $0–$15
When the frame is actually done
Hairline cracks at the hinge, a temple that will not hold a screw, colour that has gone chalky. That is replacement, not care. A well-kept acetate pair does 3–6 years; a dashboard pair can do one summer. Storage is half of lifespan — store them.
Questions, answered
- Can I soak acetate overnight?
- A 10-minute soak to loosen salt is plenty. Overnight in soapy water is how some glues and pins suffer.
- Why did the tortoise go pale?
- UV plus cheap injected ‘acetate,’ or solvent. Real block acetate fades slower. Still keep them off the dash.
- Is skin-safe acetone okay on a smudge?
- No. Acetone and acetate are a known bad pair. Soap.
