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How to Seal Corian Countertops

Corian® countertops are a solid surface material that resists scratching, is nearly impervious to staining and can be designed to fit nearly any shape or kitchen or bathroom application. While it isn't necessary to seal a Corian® countertop for stain resistance (because it isn't porous), it can be helpful to seal a Corian® countertop to enhance its finish.

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  1. Clean the countertop thoroughly using Deep Cleaner for DuPont Corian®. DuPont suggests this product for stubborn stain removal or optimum cleaning. Before sealing your countertop, it is best to have the countertop as clean as possible. You do not want to trap debris or stains under the sealant.

  2. Rinse thoroughly using distilled water, and dry immediately with a towel. Distilled water will not deposit minerals and leave spots on the countertop. When you dry the countertop immediately, you prevent other water spotting, as well.

  3. Soak one end of a lint-free polishing rag with Countertop Magic®, and polish and seal the countertop. This type of polish is used to enhance the surface gloss, since many Corian® countertops have a matt, semi-gloss or unevenly glossy surface.

  4. Tip

    There are several polish products that DuPont authorises for their Corian® countertops. If Countertop Magic® is not available in your area, Hope's Countertop Polish® or Enhance Countertop Polish® may be available. Polish your countertop at least 3-4 times a year.

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Things You'll Need

  • Deep cleaner for DuPont Corian®
  • Distilled water
  • Towel
  • Lint-free polishing rag
  • Countertop Magic®


About the Author

F.R.R. Mallory has been published since 1996, writing books, short stories, articles and essays. She has worked as an architect, restored cars, designed clothing, renovated homes and makes crafts. She is a graduate of the University of California at Berkeley with bachelor's degrees in psychology and English. Her fiction short story "Black Ice" recently won a National Space Society contest.

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