Primesource Building T1018 Series 50LB Gry Waterproofing
Thoroseal, 50 lb Gray cement waterproofing, cement based, heavy duty, waterproofing/damp proofing powder for concrete, mixed with acryl 60 & water, may be used to fill, seal, waterproof & protect masonry surfaces, comes in dry powder form, must add acryl 60.