Fire Sealant 400 Silicone

Fire and Acoustic Rated Low Modulus Sealant


FIRE SEALANT 400 is a neutral cure, elastic silicone sealant which has a fire rating of up to 4 hours in certain joint configurations (when tested to BS EN 1366-4 2006).


  • Fire rated to BS EN 1366-4 2006
  • Neutral cure – adheres  to most building  surfaces, porous and non porous
  • Permanently flexible (25% movement accommodation)
  • Excellent weathering characteristics – suitable for internal and external use.
  • Can be used in joints up to 50mm wide.
  • No priming required for most construction substrates
  • Non slump – easy to apply and tool off
  • Forms an acoustic seal

Recommended For

All building joints which require a fire rating.

Sealing joints, voids and irregular holes in fire walls, partitions and other structures; also for maintaining the integrity of pipes and cables that penetrate them. Ideal for use for fire rated expansion joints.

Specification Compliances

  • Fire rated BS EN 1366-4 2006 (report no. 181970 (May 2009)DIN 4102 -B1 and EN1366 Part 4.
  • Acoustic tested to BS EN ISO 140-3:1995.
  • Tested for air permeability to EN 13141-1 Ventilation for buildings. Performance testing of components/products for residential ventilation.
  • ISO11600 F 25LM when tested to ISO9047.

Available in

380ml Cartridges in the following colours:


Store in cool dry conditions between + 5°C and 25°C.

Shelf life

Use within 12 months.