How to Waterproof Your Basement With Sani-Tred

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Step by Step Basement Waterproofing:

The following steps will show you how to waterproof basement walls from inside with SANI-TRED®.

Products needed for waterproofing basement walls from inside: PermaFlex®, LRB (Liquid Rubber Base) and TAV (Thickening Activator)

Step 1: Prepare


"Prepare" the substrate (surface). Make sure it is clean, dry, free of any previous applied products, foreign matter and loose or crumbling material.


Step 2: Prime


"Prime" the substrate (surface): Apply 1 coat of PermaFlex® (240 sq ft per gal). Concrete block surfaces need 2 prime coats of PermaFlex® basement waterproofing products because it is more porous than standard poured concrete. The first coat of PermaFlex® penetrates deep to permanently lock and seal within the pores of the basement concrete for waterproofing. The second coat begins filling the pores, pock holes & pin holes near the surface. PermaFlex® basement waterproofing products permanently adheres to concrete.


Step 3: Patch


"Patch" and profile any joints, seams, cracks, holes and rough areas using LRB/TAV mixture. 2-parts LRB (Liquid Rubber Base) is mixed with 1-part TAV (Thickening Activator) to create a thick caulk-like mixture. A 1" diameter caulk bead of LRB/TAV mixture is applied where the wall meets the floor. Most cracks use a 3/4" diameter caulk bead when sealing basement walls from the inside.
LRB/TAV ‘Round Caulk Bead Calculator


Step 4: Topcoat


"Topcoat": Apply 1 coat of PermaFlex® (240 sq ft per gal).


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