Metacaulk 835+ Silicone Sealant, Easy Application, Firestop, 20.2 oz.

Metacaulk 835+ is a 1-component, fire-rated elastomeric silicone sealant for through penetration firestops. Prevents flames, smoke, gas, water spreading through penetration openings. Caulk grade or self-leveling option. Applied with a conventional caulking gun, trowel or with pumping equipment;. Easy and quick to install. Flexible and non-slump formula. Use in interior or exterior expansion, contraction and control joints. Use in exterior and interior penetrations. STC rating 55 as well as FBC system compatible. Caulk grade or self-leveling ready to use. No mixing or additives needed; low odor and excellent moisture resistance. FOR THE TRADESMAN: RectorSeal is recognized as a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning HVAC/R, plumbing, electrical, and construction markets.