Metacaulk® Intumescent Putty Sticks is a moldable non-curing one component fire-rated material for through-penetration firestop systems. Metacaulk® Putty will intumesce when heated, forming an insulating char. In the event of a fire, Metacaulk® Putty will prevent the spread of flames, smoke, gas, and water through penetration openings. Metacaulk® Putty is applied by hand. Mixing is never required and no special skills are necessary for installation.
Metacaulk® Putty is rated for up to 3 hours in accordance with the ASTM E 814. UL 1479 and ULC/CAM4-S115M test standards.
Metacaulk Putty Features