10.3 oz. Cartridge Metacaulk® MC150+ General Purpose Firestop Sealant, Red | REC-66648

RectorSeals line of chemical, mechanical, and firestopping products are industry-trusted leaders of specialty chemical sealants. Their products include thread sealants, firestopping sealants, plastic pipe cements, anti-seize compounds, fluxes, lubricants, chemical cleaners, duct sealants, leak locators, and other specialized products. HVAC, plumbing, electrical, and construction contractors have come to rely on RectorSeals professional-grade products since 1937.

• For interior use and paintable
• Minimum 3-year shelf life and Intumescent
• One-component, general purpose, fire-rated sealant and smoke seal for construction joints and through-penetrations
• Water-based, non-sag caulking grade sealant that is easy to apply as well as to retrofit
• All systems rated for up to 4 hours as per ASTM E814 (UL1479) & ASTM E1966 (UL 2079) test standards