Material
Polystyrene
Polystyrene needs stain treatment matched to its fibre, finish, construction and tolerance for water, heat, solvents, bleach and abrasion. Start with the mildest compatible route.
- SurfaceNon porous
- WashingSpot only
- Colour run riskLow
- Reviewed2 September 2026
What polystyrene can and cannot take
- Heat Use with care
- Water and soaking Tolerates it
- Acids, including vinegar Use with care
- Strong alkalis Use with care
- Solvents Avoid
- Chlorine bleach Use with care
- Abrasives Avoid
Always test on a hidden area first and let it dry before you treat the visible mark.
General rules for polystyrene
Lift the bulk with a plastic edge, wipe with diluted washing-up liquid and rinse. Avoid acetone, paint thinner, rough pads and concentrated cleaner because they can haze or crack plastics.
Check the label
Identify the exact fibre, coating, finish or care code before treating Polystyrene. The least tolerant component sets the limit for the whole item.
Stains on polystyrene
- Body oil Lift free oil from polystyrene, then clean a small area with a maker-approved mild detergent solution and a s...
- Breast milk Blot the spill, identify the finish and use a controlled cold clean only where permitted. Where the maker per...
- Bronzer Lift loose bronzer from polystyrene before it is rubbed in. Blot cream bronzer, follow the material or care l...
- Coffee Wipe coffee off polystyrene promptly with a soft cloth. Check the finish and maker care rules first. Do not t...
- Concealer Lift thick concealer from Polystyrene, blot without rubbing, then use a very small amount of diluted washing-...
- Cooking grease Lift and blot cooking grease from Polystyrene, then use a small amount of diluted washing-up liquid only if t...
- Hair dye Blot hair dye from Polystyrene, test the mildest compatible cool detergent route, clean inwards, remove resid...
- Lipstick Lift lipstick from Polystyrene with a blunt edge, blot without rubbing, then use a very small amount of dilut...
- Motor oil Blot motor oil from Polystyrene, absorb as much as possible, then use a small amount of diluted washing-up li...
- Nail polish Lift free polish gently if the face permits contact. A maker-approved mild damp wipe can clear loose residue,...
- Pet urine Blot until nearly dry, then use only the cool-water quantity polystyrene can tolerate. Use a labelled pet uri...
- Tomato sauce Lift tomato sauce from Polystyrene, then wipe or blot inwards with a tested cool detergent solution. Remove r...
Polystyrene can be damaged by a cleaner that is harmless on a different material. Identify the exact fibre, coating, finish, care code and construction before treating a stain.
Use the least aggressive route
Lift the bulk with a plastic edge, wipe with diluted washing-up liquid and rinse. Avoid acetone, paint thinner, rough pads and concentrated cleaner because they can haze or crack plastics.
Judge only when dry
A remaining patch may be residue, dye transfer, finish change or material damage. Stop if a hidden test changes colour, gloss, texture, shape or adhesion, and use a specialist when the care label or finish cannot be established.
Sources
What we checked and when. Where a manufacturer instruction disagrees with anything here, follow the manufacturer.
-
Delta acrylic bathing product care
manufacturer
Manufacturer guidance that acrylic and related plastics can be damaged by acetone, paint thinner and other solvents, so only compatible non-abrasive cleaners should be used.
Checked 2 September 2026
-
Corian solid surface routine care
manufacturer
Manufacturer guidance to use soapy water or an appropriate household cleaner for grease and oil, rinse thoroughly, avoid metal tools and account for gloss level before using any abrasive.
Checked 2 September 2026