Nullifire M703 Silicone Sealant

Nullifire M703 is a single-part alkoxy-based fire resistant, elastomeric, neutral cure silicone sealant. M703 provides up to 5 hours fire protection at internal and external building gaps and movement joints. It allows up to 50% movement. It also provides fire protection around service penetrations. In addition, this product can ensure that the acoustic performance of the substrate is maintained. M703 has been fully tested to comply with the air leakage requirement of ‘Approved Document L’.

uk  Made in the U.K.


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SKU: nullifire-fs703-m703-silicone-sealant Categories: ,

Product Description
Why use Nullifire Silicone Sealant M703?
  • Up to 5 hours fire resistance
  • Suitable for gaps up to 50mm wide
  • No insulative backing material required for fire performance, PE backing rod for depth gauge only
  • Excellent tool ability and low slump characteristics
  • Width to depth ration of 2:1 (10mm wide 5mm deep)
  • Accommodates movement up to 50%
  • Weather and UV resistant
  • Resistant to mould fungus and vermin attack
  • Smoke, gas and hermetically air tight
  • Can be used for external applications
  • Water resistant

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