How to Clean Corian

Cheyenne Cartwright

Corian is a solid-surface material that DuPont makes from acrylic polymers combined with other components (the exact formula is proprietary), and then forms into seamless countertops for kitchens and laboratories. Corian is non-porous, heat-, stain- and scratch-resistant, and easy to clean, maintain and repair.

  1. Clean Corian with ordinary dishwashing soap and warm water. Then wipe it completely dry to prevent soap or cleaner buildup, which can dull the surface.

  2. Scrub Corian with a scrubber sponge and an abrasive cleanser if you notice soap or cleaner buildup. Rinse, then wipe dry.

  3. Use a commercial countertop polish to keep Corian looking bright and shiny (for darker colors). If the Corian surface is a food-preparation area, make sure the polish is food-safe.

  4. Scrub out mars like cigarette burns and marker stains with a Scotch-Brite sponge (the company’s specific choice--green pad for matte finish, white pad for gloss finish) and an abrasive cleanser.

  5. Sand out more stubborn stains, cuts and minor scratches with fine sandpaper. On a matte Corian countertop, use 220-grit sandpaper and then buff the surface with a green Scotch-Brite pad in a circular motion. On a semi-gloss surface, start by sanding with 220-grit sandpaper, then move to 320-grit, and finish with 400-grit. Then buff the surface with a sponge and abrasive cleanser.

  6. Warning

    DuPont warns that you can't use strong chemicals on Corian, including commercial drain cleaners that contain acid, methylene chloride, concentrated sulfuric and hydrochloric acids, chloroform, ketones and strong chlorinated solvents.

    For a high-gloss surface repair, contact DuPont or the supplier of the countertop and ask to be referred to a professional.

    Even though DuPont bills Corian as “heat-resistant,” the company cautions that you should not set hot pots and pans directly on the surface. It also advises to use a cutting board to prepare food rather than cutting directly on Corian.