Karnak 88R Rubberized Waterproofing is a solvent based elastomeric asphalt compound, manufactured with selected asphalts, stabilizers and mineral spirits. 88R Rubberized Waterproofing is prepared to semi-mastic consistency for easy spray application. 88R is a multi-purpose, cold applied protective waterproofing that dries to a tough 33-mil durable and flexible coating that gives excellent performance over a wide range of temperature and weather conditions. This protective coating also functions as an air barrier as specified in a number of building codes. 88R Waterproofing exhibits excellent resistance to acids and alkalis in soil and in the environment.