MasterSeal NP 150 is a high performance, very low-modulus, high-movement, non-sag, fast-curing, hybrid sealant.
ASTM C920, Type S, Grade NS, Class 50, Use NT, M, A, and O
Federal Specification TT-S-001543A, Type II, Class A
Federal Specification TT-S-00230C, Type II,Class A
Corps of Engineers CRD-C-541, Type II, Class A