Cleaning, protecting and restoring acrylic (rigid plastic) – windows, washboards, hatches etc

Acrylic is also known by brand names Perspex and Plexiglass. It’s typically used in boat windows, hatches and washboards.

Avoid cleaning products designed for car windscreens or glass. Some of these cause deep crazing which may not be immediately apparent.

Regular maintenance

Wash with clean fresh water and use BoatSheen Acrylic Window Cleaner.


Some protection is provided by BoatSheen Acrylic Window Cleaner as it reduces dirt adhesion and helps to reduce scratching.


Polish out scratches and protect the surface with BoatSheen Vinyl Window Restorer. Crazing can’t usually be polished out, so crazed acrylic usually has to be replaced.