STI Series LC Endothermic Sealant 20 Ounce Sausage 36 Cu. In. (592 ml), Gray, LC120GL

SpecSeal LC Endothermic Sealant is a latex-based gun grade firestop sealant for construction joints and non-combustible penetrations. After application, LC Sealant cures to form a flexible seal against the propagation of fire. Under fire exposure, LC absorbs heat and release water vapor resisting the progress of smoke and flame.