Metacaulk 1200, 20.2 .oz Sausage

Metacaulk 1200 Firestop Sealant – Fire-Rated Construction Joint Sealant Metacaulk 1200 is a single-component, water-based firestop sealant designed for general use in construction joints. It cures to an elastomeric membrane seal suitable for dynamic movement areas, effectively preventing the spread of flames, smoke, hot gases, and water through joint openings. Ideal for electrical distributors, lighting solutions, wire and cable installations, and switchgear suppliers, it provides a reliable fire and smoke barrier in vertical and horizontal joints, including wall tops, curtain wall perimeters, and HVAC ducts. Specifications Product Weight: 21.45 lbs Manufacturer: RectorSeal Manufacturer Part #: 66292 Color: Red or White Application Methods: Spray, brush, direct from cartridge or container Density: 10.5 lbs/gal pH: 7 to 8 Curing Time: 5 to 7 days (at 77°F / 25°C, 1/8” thickness) Skin Over Time: 30 to 45 minutes (at 77°F / 25°C) VOC Content: <1% (61.8 µg/m³, CDPH 01350 v1.2 standard) Boiling Point: 212°F (100°C) Flash Point: None Stability: Stable under normal conditions Fire Rating: Classified up to 3 hours per UL 2079, ASTM E814 (UL1479) up to 2 hours Features Single-component, ready-to-use fire-rated sealant Water-based and paintable Flexible, elastomeric seal suitable for dynamic joint movement Effective smoke and fire barrier Biocide-protected to prevent mold growth in wet or dry conditions Can be applied by spray, brush, caulking gun, or trowel Meets VOC requirements for environmental compliance Minimum 2-year shelf life when stored properly Non-toxic, non-carcinogenic, and non-flammable Compatible with various construction joint systems and materials Downloads & Links Safety Data Sheet PDS - Spanish Spec Sheet PDS - French SDS - French SDS - Spanish Certified Clean Air Gold Certificate