Dowsil Firestop 700 is a non-slump, fast cure silicone sealant for preventing the spread of smoke and flames through expansion joints, penetration seals in curtain walling, building facades or partition walls.
Dowsil Firestop 700 provides excellent unprimed adhesion to most porous and non-porous substrates in construction including stone, steel, masonry, brick, and wood. The sealant has good weathering characteristics including resistance to temperature extremes, ozone, and UV radiation.
The product is available in black, grey, and white.
Application
It is designed for sealing expansion joints and pipes and cable penetrations in fire-related structures.
Features
Non-slump
Neutral cure
Joint movement capability ±50%
Halogen-free
A fire rating of up to 4 hours can be achieved
Tack free in 1.5 hours
Application Temperature Range 5 to 40°C
Excellent weathering characteristics
Long service life
Regulations / Approvals
ISO 11600-F and G-25LM standards
BS 476 Part 22
Meets HL2/R22, HL3/R23, R24 of the EN45545 railway regulation