What Is Thoroseal

Thoroseal® 550i is a ready-to-use polymer-modified cement-based coating. It is used to waterproof and protect concrete, mortar, and masonry surfaces requiring either positive- or negative-side waterproofing. Thoroseal® 550i can be applied by low-pressure spraying or hand troweling.

How do you use Thoroseal?

Brush it On Start at the top and work down. Use a tampico fiber brush to apply Super Thoroseal® in a thick coat, working the mixture into the pores of the surface for a good penetrating seal. Double back and use the brush to smooth out the material. Allow 12 hours between coats for drying time.

How long does it take Thoroseal to cure?

Allow Thoroseal® Foundation Coating to cure 7 – 10 days before immersion in water.