Biostop® Putty is a moldable non-curing one component fire-rated material for throughpenetration firestop systems. Biostop® Putty will intumesce when heated, forming an insulating char. In the event of a fire, Biostop® Putty will prevent the spread of flames, smoke, gas and water through penetration openings. Biostop® Putty is applied by hand. Mixing is never required and no special skills are necessary for installation. Biostop® Putty is rated for up to 3hours in accordance with the ASTM E 814, UL 1479 and ULC/CAN4- S115-M test standards.
- 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
- Water resistant