Metacaulk 66640 1000 Intumescent Firestop Sealant - 10.3 oz. Cartridge

Water-based, flexible, highly intumescent sealant designed for use on metal, insulated, fiberglass and plastic pipes.

• UL Classified Systems up to 4 hr.
• High intumescent
• VOC compliant
• Excellent freeze-thaw
• For interior use – paintable
• Meets ASTM E 814, UL 1479 & UL 2079 standards.
• STC rating 62
• Size: 10.3 oz. Cartridge