3C SEALANTS INTUMESCENT ACOUSTIC SEALANT
3C Intumescent Acoustic is a five hour rated, one part, emulsion acrylic based, intumescent sealant that gives a firm yet flexible seal to joints in a variety of fire rated structures. Tested in accordance with BS EN 1366-4:2006 as detailed in Warrington Fire Research Report No.181967 (May 2009) The product, in suitablity designed joints will resist the passage of the fire for up to 5 hours. The selected filler used in this formulation also makes it suitable for use as an acoustic sealant.
BENEFITS:
- Tested to BS EN 1366-4 : 2006 & BS EN 1366-3 report ref 349127
- When exposed to heat, it swells greater than 3 x its original size, so creating a char that will resist the pasage of fire for up to 5 hours
- No priming required for most construction substrates
- Joint movement capability of +/-10%
- For use in joints up to 50mm wide
- Halogen free
- Non slump - easy to apply and tool off
- Fast skinning - tack free in 15 minutes
- Over paintable
- Excellent acoustic properties for sound deadening - average noise reduction of 25.2db (100-3150Hz)
