Jan 23, 2026 - 08:30 AM
We don't have a product for porcelain tile. Porcelain is sealed and inert, so it doesn't off-gas or require sealing.
Our Green Building Supply penetrating concrete sealer is designed specifically for concrete surfaces, not porcelain, and functions as a concrete moisture sealer and indoor concrete sealer.
We’ve provided several answers to questions related to Concrete & Masonry Sealers , see some other helpful Q&A related to this product.
Question: Where could I find a list of ingredients for this product?
Answer: As mentioned on the Safety Data Sheet, available on our website, Specific chemical identity and/or percentages of composition has been withheld as a trade secret.
Question: Can a self-leveler be used after this sealer is applied?
Answer: A self leveler cannot be used in conjunction with this product.
Question: Can this be applied over black mastic?
Answer: It cannot. The only thing we have for mastic is a remover: FranMar 500MR Mastic Remover. If that is what you are wanting to do, order a small sample to test first. We have nothing at all to just use as a "sealer" over mastic.
Question: Will this sealer block radon from coming up into the living spaces if we seal our concslab with it???
Answer: We don't have a product that is designed to stop radon from coming through the concrete.
View all Green Building Supply, Penetrating Concrete Sealer Questions & Answers
