Thoroseal Foundation Waterproofing Coating 50lb – Sealants & Coatings for home flood protection
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$55–$85
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4.9 457 reviews
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Euclid Chemical (Thoro)

Thoroseal Foundation Waterproofing Coating 50lb

🔒 Sealants & Coatings
4.9 457 verified reviews
FloodReady Verified
Expert Recommended
Best Value

Professional-grade cementitious waterproofing coating used by contractors for over 85 years. Thoroseal is a crystalline/cementitious compound that penetrates and bonds to concrete and masonry — becoming part of the structure rather than sitting on top. Resists up to 7 PSI of hydrostatic pressure. Mixed with water and applied by brush. One 50lb bag covers approximately 50 sq ft in two coats.

Key Features

🛡️85+ year proven track record
Penetrates and bonds to concrete/masonry
💧Resists up to 7 PSI hydrostatic pressure
🔒50lb bag covers ~50 sq ft (2 coats)
Mix with water — no solvents
📦Can be applied to damp surfaces

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amazon
Amazon
$55–$85
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the home depot
Home Depot
$55–$85
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