smart bond FIRE SEALANT 280 ML GREY Crack Filler (280 ml)

SmartBond Fire Rated silicone sealant is Recommended for firestop sealing of interior and exterior building and construction movement joints or openings, where a fire rating of up to 4 hours is required. In addition, it is used in mechanical, electrical, and plumbing applications like sealing openings or service penetrations Direction 1. Surfaces must be clean, dry and free of dirt, grease, oil or water. 2. Install backing material to control the depth of sealant bead in accordance with the fire rating that is required. 3. For a neat finish, apply masking tape and remove it before sealant skins over. 4. Cut nozzle at 45° angle to desired bead-width and apply sealant to substrate with cartridge gun. 5. Tooling time is 20 minutes, tack-free time is 30 minutes.