Waterproof, Period! ( 8 0 0 ) 6 3 3 - 4 6 2 2 w w w . n a c p r o d u c t s . c o m functions as a sealant, stand alone crack suppressant and moisture barrier. Easily applied with a trowel, brush, roller or airless sprayer, SubSeal® has superior adhesion to the substrate and meets ANSI A118.10 and ANSI A118.12 for thin-bed, load bearing waterproof membranes. ressant , SubSeal® has superior adhesion to the substrate and meets Perfect solution for bathrooms, kitchens, exterior decks - (available in 1 or 5 gallon sizes)