How to Care for Corian Countertops. Corian countertops are a completely solid material, which come in a variety of colors with 3 different finishes. The most common finish for countertops is matte/satin. Darker colors tend to require more attention to maintain the original look and color, but Corian countertops are a durable choice and can be easily maintained for years to come.
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Rinse any newly installed Corian countertop with clean water only. Apply pressure to a sponge or rag to remove any blotchiness from the finish.
Follow Step 1 by completely wiping the countertops dry. This will remove any film or dull residue following an installation, but may need to be repeated more than once.
Remove dirt and residue by cleaning your Corian countertops with soapy water or ammonia-based cleaners for routine maintenance. Always dry the surface to prevent any buildup or watermarks.
Remove difficult residue or stains by spraying a Corian cleaner directly to the spot and let sit for 30 seconds. Wipe dry with a paper towel and repeat if necessary. Read the labels on any purchased cleaning products for the safety of your corian finish.
Disinfect the surface occasionally by mixing one part water to one part bleach. Apply with a sponge or rag, rinse completely and dry thoroughly.
Clean sinks and lavatories by applying a soft scrubbing liquid. Rub the liquid into the sink with a soft scrubbing sponge. Be sure to cover the entire sink surface to blend in the finish. Rinse thoroughly.
Remove small cuts and scratches by sanding the area with a sanding pad. You will need 4 to 5 different grits of sanding pads ranging from a fine to a rough grit.
Sand a scratch or cut by rubbing the scratch gently with the roughest grit sandpaper in the same direction as the cut. Switch the direction of your light rubbing by turning your pad 90 degrees. You can apply water to minimize dust while sanding and rinse with clean water.
Select the next lighter level of grit from your sandpaper and rub over a larger area to blend in the sanding. Repeat this action with a lighter grade of sandpaper until your desired finish and level of gloss is achieved.