ProFlex Nss
It is a single – component ,neutral silicone ,low -modulus ,non -slumping intumescent silicone sealant . it is designed to seal combustible service penetrations in fire rated walls and floors .Silicone sealant with excellent adhesion to a wide range of porous & non-porous substrates. it complies with ANSI /UL 723 ,EN-11925 -2/DIN 4102-B1 ,up to 4 hours fire rating LM F&G ,ASTMC -920 class 25 &TT-S002302 C,TT-S001543A,ASTM E-84