- Fire rated up to 4 hours
- Acoustic rated
- Excellent durability
- Retains its original properties even after years of weather and UV exposure
- Non staining
One Part, Fire Rated, Intumescent Polyurethane Joint Sealant.
Bostik Fireban One is a fire rated intumescent, low modulus, one component, and Class A polyurethane sealant. When cured it will form a tough, flexible fire rated seal capable of cyclic expansion and compression movement of 50% (±25%) of the original installed joint width.