FS709 HP Intumescent Sealant

HP Intumescent Sealant

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FS709 HP is a high expansion/pressure exerting, graphite intumescent sealant that expands when exposed to fire, reinstating the fire performance of compartment walls and floors which have been penetrated with services.
FS709 can be used on flexible walls & rigid walls (100 mm or wider), rigid floors (150 mm or wider), and also with FB750 Intubatt Coated Batts.

Fire Rating: 240 Minutes


FS709 is designed to close off gaps and penetrations in compartment walls and floors, to provide up to 4 hours fire resistance. This product has been formulated to close off combustible pipe penetrations in the event of a fire, negating the need for pipe closers or wrap systems. FS709 has been tested with the following service penetrations: combustible pipes up to 125 mm (ABS, PE, PP, HDPE, PVC, PEX...) insulated non-combustible pipes up to 160 mm ; pipe insulation types: nytrile rubber, glass fibre, rock fibre up to 60 mm insulation wall thickness individual or groups of cables, perforated & non-perforated cable trays, cable ladders, cable baskets (up to 500 mm), cable bundles (up to 100 mm) For use in dry internal conditions only. For other conditions, such as high humidity, contact Technical Services.

Always read SDS, pre-application guidance and relevant application detail prior to application. Ensure the latest documents are downloaded prior to every project commencement.

Safety data sheet must be read and understood before use.

  • Up to 4 hours fire resistance - Tested to EN 1366-3 and EN 1366-4.
  • Versatile & easy to apply.
  • Can be used with FB750 Intubatt Coated Batt.
  • Tested with combustible pipes up to 125 mm, insulated non-combustible pipes up to 160 mm, cables, cable trays/ladders/baskets (up to 500 mm), cable bundles (up to 100 mm).
  • Tested in openings up to 600 x 600 mm.
  • Tested for use in linear gaps up to 25 mm.
  • Optifire┬«+ unique traceability identifier.
FS709 Declaration of Performance (en-GB).pdf Declaration of Performance
FS709 Safety Data Sheet (en-GB).pdf Safety Data Sheets
FS709 Technical Data Sheet (en-GB).pdf TDS
FS709 HP Intumescent Sealant To Various Pens DL Technical Drawing (en-GB).pdf Technical Drawing
FS709 Technical Drawing Detail - Combustible Pipes (en-GB).pdf Technical Drawing
FS709 Technical Drawing Detail - Cables (en-GB).pdf Technical Drawing
Nullifire Single Sided Technical Pack (en-GB).pdf Technical Drawing
Nullifire Fire Stopping Brochure (en-GB).pdf Brochure