Is there a waterproof primer/sealer for painted sheetrock?

by Faye

I want to use it under & over painted sheetrock.

  4 answers
  • Tinyshoes Tinyshoes on Jul 14, 2019

    Faye...May husband used a moisture resistant sheetrock in our basement when we went from paneling to sheetrock. He purchased from Lowe's. He says it's similar to what is normally used on bathroom walls in building. I don't guess I actually answered your question as it appears you already have the sheetrock but I do know they do have a Zinsser product called Gardz from Amazon that might help with what you have. Good luck!

  • Seth Seth on Jul 14, 2019


    I have used Gardz. It makes a good sealer and primer, but it is not waterproof, just water resistant. Google how to waterproof sheetrock. There are special paints and products to achieve that.

  • Sharon Sharon on Jul 14, 2019

    They make a rubberized paint on substance to use in bathrooms before tiling.... Redguard or Kerdi

  • Deb K Deb K on Jul 14, 2019

    Hello Faye, there is "greenboard" that is water proof, I have attached a link for you to read over which discusses green and blue drywall sheets