Can this be applied over black mastic?
Green Building Supply, Penetrating Concrete Sealer
Concrete & Masonry Sealers
Status:
Open Jun 29, 2025 - 03:44 AM
1answer
Staff Answer
Jun 30, 2025 - 12:14 PM
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.
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Green Building Supply, Penetrating Concrete Sealer
Safe, permanent waterproofing sealer for concrete, masonry, stucco or brick Cold Weather AlertThis product may not perform properly if applied below the required temperature. Please check installation instructions on our website. Because this is a water-based product, it may freeze during shipping. ...
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