Firesound™ is a fire rated acoustic sealant, formulated primarily to perform as a barrier to the incursion of fire through expansion joints and wall penetrations such as pipes or cables. Firesound™ is also an effective acoustic sealant.
Fire rating for gaps up to 50mm
Up to 4 hour fire rating (AS1530.4-2005)
Excellent acoustic properties (STC 65)
Good flexibility; +/- 20% joint movement capability
Intumescent; expands when exposed to fire or extreme heat
Sealing exterior and interior construction joints that are subject to movement (up to +/-20%) in pre-cast concrete panels, block work and brickwork
Gaps around cables, metal pipes, conduits, busways and ducts that penetrate walls, floors and ceilings
If joint movement is not required, Firesound can be used as a putty for filling holes in fire rated substrates
Consult a fire engineer before use in a fire rated application.