Step 1
Mix a few drops of mild dish washing detergent with warm water in a plastic bucket. Clean the Corian counters with the solution, wiping it on with a sponge. Rinse the countertop with fresh water and wipe it dry.
Step 2
Wipe down the surface of the counters with an ammonia-based cleaner designed for cleaning bathrooms. Go over the surface carefully, removing any dust or buildup left behind by the sanding. Dry off the counters with a soft cloth.
Step 3
Apply a small amount of Soft Scrub to a soft cloth. DuPont, the manufacturer of Corian countertops, recommends this product for scratches and scuffs. Move across the scratches, rubbing the cleanser on the counters in a circular motion, side-to-side then top-to-bottom. Rub a dry cloth across the counter to remove any excess product.
Step 4
Pour nonabrasive polish onto a soft cloth and rub it across the counters in a circular motion. Work from one corner of the counter to the opposite corner. Move down and keep rubbing, overlapping in circles as you polish the countertop.
Step 5
Buff the counters gently with a soft cloth. After the counters absorb some of the polish, gently rub a dry cloth across the Corian. The cloth absorbs any excess polish and gently buffs the countertop, bringing back its shine.