Waterproofs and protects building interiors from dampness, moisture or seepage. For interior or exterior, above or below grade, vertical, overhead and non-traffic bearing surfaces. Locks water out or holds it in by actually becoming part of the wall. Fills and seals pores and voids to correct surface irregularities. NSF approved, use in potable water tanks. Resistant to mold and mildew. Compatible with a wide range of architectural coatings and textured finishes.