PFC Corofil Acoustic Intumescent Sealant is a high specification, one part water based acrylic sealant, extruded from a cartridge loaded into a standard sealant gun. The depth of the joint will depend on the gap to be filled and the fire rating required (see fire rating).
PFC Corofil Acoustic Intumescent Sealant is suitable for sealing joints and service penetrations in fire walls, partitions, fire rated door frames and glazing systems. Tested in accordance with BS 476:Parts 20 & 22:1987 and BS EN:1366-4, PFC Corofil Acoustic Intumescent Sealant provides up to 4 hours fire protection in joints up to 30mm wide. In addition to the fire rating, the sealant may be used to seal joints in party walls to provide an acoustic seal.
Sold as a box of 25 tubes, this product represents fantastic value for money and excellent fire performance across a huge variety of applications.
All surfaces must be thoroughly clean and free of bond breaking contaminants prior to application of the sealant. No priming is required for most construction substrates, however, it is recommended that a small area be tested on substrates. The sealant should not be applied if the ambient temperature is below 5ºC as adhesion will be impaired. The sealant is fast curing approximately 15 minute tack free time. When fully cured, the sealant is overpaintable. Under fire conditions the sealant forms a fire resistant ash.