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Corian Countertops - Repair, Refinishing and Polishing

By Edited Aug 18, 2016 0 0

Homeowners choose Corian countertops for their low maintenance and visual appeal in kitchens, bathrooms, laundry rooms along with anywhere else in the house. The DuPont Corporation manufacturers Corian counters from polymers, acrylics and dyes to form a solid surface counter top that is heat and stain resistant. Although a tough and durable surface, Corian can scratch, nick or chip if the wrong type of cleansers are used or the countertop goes unprotected when slicing and chopping foods. Some cleansers will also remove the shine from the surface. Placing a hot pot on a wet or damp Corian countertop will also dull the shine, making your counters look old and dingy. DuPont dyes Corian throughout the thickness of the solid surfacing material to make repairs less difficult than other counter tops that have a color only on the surface.

After living with Corian countertops for a while, you may notice some knife marks from where you forgot to use a cutting board or a series of surface scratches that are a mystery or could be from sliding a rough abject over the countertop. A small chip may be missing from where a heavy object fell and landed on the surface. By far the most noticeable blemish is probably the areas that look dull. Typically, dulling occurs from placing a hot pot or pan on a wet or damp area of the Corian. No amount of cleaning or scrubbing will be the shine back to the lackluster areas. Repairing the scratches and nicks will even out the surface and help to restore the Corian. Polishing the counter top will restore the shine and make the Corian look as good as it did when you first installed it.

A Good Cleaning Before Repairing

Add a quirt or two of a grease fighting liquid dish detergent to a bucket of warm water.

Dip a sponge or rag into the soapy water.

Rub the rag or sponge over the countertop, rinsing it often to remove surface dirt, grease and grime.

Wet a second rag with warm water. Wipe the soapy residue off the Corian surface. Rinse the rag well and wipe the counters down a second time.

Dry the countertop with a soft rag.

Examine the countertop, noting the light marring on the surface, scratches and knife cuts as well as the areas that have lost their sheen.

If the countertop still has buildup, use Deep Cleaner for DuPont Corian made by Stone Care International to clean the surface and remove any buildup or particularly difficult to clean areas.

Apply Deep Cleaner to the countertop and work it into grimy buildup with a damp rag or sponge.

Wipe the area with a clean damp rag to remove cleaning residue.

Dry the Corian with a soft rag.

Marring or Light Surface Scratch Repair

Add 2 tablespoons of baking soda to a small bowl. Slowly add water while stirring. Continue adding water until the baking soda becomes a watery, thin paste.

Dip the corner of a damp rag into the paste.

Rub the rag back and forth over the light surface scratches.

Dip the rag back into the paste and rub the rag perpendicular to the first application.

Dip the rag into the paste one more time and rub it into the countertop making small circles over the light scratches. Continue to make circles as you move 1 to 2 inches past the scratch marks.

Wet a sponge or rag with warm water and wipe away the white haze from the baking soda.

Dry the Corian with a soft rag.

If light scratches remain, apply Soft Scrub to a damp sponge or rag.

Rub the soft scrub into the light scratches working in a small circular pattern. Continue to rub until you no longer see the scratches.

Wipe the countertop three to four times with a clean wet rag to remove the Soft Scrub residue.

Dry the Corian with a rag.

Repairing Shallow Knife Cuts on Corian

 Sprinkle water over the scratches.

Wet a piece of 600-grit sandpaper with water.

Wrap the wet sandpaper around a hard rubber sanding block.

Lightly sand the Corian, moving the sandpaper across the scratches.

Continue to sand the scratches and monitor them closely. Add more water to the surface and stop sanding once the scratches are no longer visible. Keep the sandpaper moving and not in one spot because you can create a slight depression on the surface if you continue to concentrate sanding in one area.

 Wipe the counter top with a damp sponge or rag to clean away small pieces of dust from sanding.

Wet the area with plain water again.

Wrap a piece of wet 1000-grit sandpaper around a hard rubber sanding block. Keep the sandpaper moving and not in one spot because you can create a slight depression on the surface if you continue to concentrate sanding in one area.

Lightly sand the scratches making circles over the scratches. Sand from the center of the scratched areas and make bigger and bigger circles until you sand 1 to 2 inches past the edge of the scratched area.

Continue to lightly sand the Corian until you can no longer see scratches.

Remove the small bits of dust and debris with a damp sponge or rag.

Dry the countertop with a rag.

 Place a polishing bonnet over the head of an orbital palm sander.

Lightly move the bonnet over the sanded area to restore the shine somewhat.

Polishing a Corian Countertop

After you’ve thoroughly clean the countertop, made repairs, washed and dried it completely, you can put a shine on the counter tops even if the original Corian was a matte color.

Choose one of the following countertop polishing products Enhance Countertop Polish, Hope’s Countertop Polish or Countertop Magic to add a shine to the Corian.

Spray the Corian with the polishing product of your choice and rub it over the surface with a clean lint free rag.

Allow the surface to dry before using.

Polishing products come as a pump spray, premoistened cloths and bottled liquids. All of the above mentioned products are equally effective and recommended by DuPont.

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