3C Sealants Intumescent Mastic 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.


- 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)

Price Information

The following prices are based on order quantity.
Quantity OrderedPrice per Tube
1 - 24£2.15 (inc VAT)
25 - 249£2.02 (inc VAT)
250 - 1199£1.88 (inc VAT)
1200 or more£1.74 (inc VAT)
Image Code Description Brand Colour EAN Size Price Quantity
CCC0002 3C Sealants Intumescent Acoustic Sealant Grey 3C Sealants Grey 5060535660037 380ml £2.15 (inc VAT)
CCC0001 3C Sealants Intumescent Acoustic Sealant White 3C Sealants White 5060535660020 380ml £2.15 (inc VAT)