Metacaulk 1200, 20.2 .oz Sausage, White

Metacaulk 1200 Firestop Sealant for Electrical and Construction Applications Metacaulk 1200 is a single-component, general-use fire-rated sealant designed for construction joints, providing an elastomeric membrane seal suitable for areas subject to dynamic movement. It prevents the spread of flames, smoke, hot gases, and water through joint openings, making it an essential product for firestopping applications in electrical distribution, lighting solutions, wire and cable installations, and switchgear assemblies. Specifications Product Weight: 30.0000 lbs Color: White or Red Application Methods: Spray, brush, direct from cartridge or sausage tube Density: 10.5 lbs/gal Skin Over Time: 30-45 minutes at 77°F (25°C) Cure Time: 5 to 7 days at 77°F (25°C) for 1/8” thickness pH Value: 7 to 8 VOC Content: Negligible, <1% or <10 g/L Boiling Point: 212°F (100°C) at 760 mmHg Specific Gravity: 1.1 Flash Point: None UL Classification: Up to 3 hours fire resistance per UL 2079 ASTM Standards: Passed ASTM E1399 (500 cycles), ASTM E814 (UL1479) up to 2 hours Coverage Volume: 36 cubic inches per 20.2 oz sausage, 54 cubic inches per 30 oz cartridge Features Single-component, water-based firestop sealant Flexible, elastomeric seal suitable for dynamic joints Prevents passage of fire, smoke, hot gases, and water Can be applied by spray, brush, caulking gun, or spatula Paintable and meets VOC requirements for environmental compliance Resistant to mold growth in both wet and dry conditions due to biocides Stable and non-flammable with no hazardous solvents or asbestos Minimum 2-year shelf life when stored properly between 35°F and 120°F Non-toxic with no classified health hazards under OSHA standards Downloads & Links Safety Data Sheet PDS - Spanish Spec Sheet PDS - French SDS - French SDS - Spanish Certified Clean Air Gold Certificate