Metacaulk® Fire Rated Putty Stick | Firestopping

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.

Various Applications

• Metal or Non-Metal Electric Boxes
• Small Openings
• EMT Pipe
• Steel, Conduit, and Cabling (Telephone,  Power, Communications)

Metacaulk Putty Features

• Possesses intumescent properties; expands when exposed to fire.
• No Volatile Solvents, which makes it particularly useful when installing in confined spaces or occupied areas
• Does not have Asbestos Fillers
• A single component putty system; no mixing necessary and no required additives
• DOT Classification is not regulated
• Applied by hand
• Easy to install
• Adheres to all common building common surfaces.
• Sound Transmission Class (STC) 60

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