How to paint over silicone

Written by keith dooley
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How to paint over silicone
You can paint over silicone. (Kesu01/iStock/Getty Images)

Caulk fills small holes and cracks in a wide variety of materials. From baths to exterior moulding, caulk is often used to make minor repairs. Silicone caulk is a durable and long-lasting variety that seals and waterproofs. Its drawback is that paint will not stick to it. However, it is possible to paint over silicone caulk.

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Things you need

  • Denatured alcohol
  • Rag
  • Fine-grit sandpaper
  • Paintbrush
  • Primer
  • Paint

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Instructions

  1. 1

    Pour denatured alcohol onto a rag. Apply enough alcohol to moisten the rag without saturating.

  2. 2

    Wipe the area of silicone caulk where paint will be applied. Rub the denatured alcohol back and forth to break down the caulk's slick surface.

  3. 3

    Lightly sand the silicon caulked area with fine-grit sandpaper. Rub the sandpaper back and forth to rough up the caulked area.

  4. 4

    Paint the caulked area with primer in preparation for painting. Evenly apply the primer with a paintbrush and allow to dry thoroughly.

  5. 5

    Apply a coat of paint to the primed area and allow to dry. Apply a second coat of paint, if necessary, to the caulked area.

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