Fire Barrier Sealant, Size 20 oz., Red, Container Type Tube, Application Method Caulk Gun, Up to 4 hr. Fire Rating, Material Intumescent RestrictionsCalifornia Proposition 65 Warning: This product contains a chemical known to the State of California to cause cancer. 4-hr. Latex(A) Penetration SealantsFire Barrier ProductsSTI brand SSS model multiviscosity formula has 2-stage intumescence for extremely fast expansion. LCI model is acoustically test11ed to reduce noise transmission. 3M brand bonds to concrete, metal, wood, plastic, and cable jacketing. Formula dries tack-free in 10 to 15 min.; paintable after 72 hr. CPV compatible.Material expands when exposed to heat or fire. Can be applied to vertical or overhead surfaces. Easy installation, cleanup, and disposal. Nonhalogen formula requires no mixing. Paintable, sag-resistant sealants remain flexible.UL Classified and FM Approved.