Nullifire FB750 Intubatt Product Image

What is Nullifire FB750 Intubatt?

Nullifire FB750 Intubatt is a lightweight fire barrier comprising of a rock mineral fibre board with a uniquely identifiable ablative coating, containing Optifire unique traceability identifier.

What applications can Intubatt be used for?

Nullifire FB750 Intubatt is designed to reinstate the fire performance of compartment walls and floors which have been breached by penetrating services, providing a fire, smoke, thermal, acoustic and air pressure seal.

Nullfire FB750 must be used in conjunction with FS702 Intumastic to be suitable for sealing around the following service types: non-combustible pipes, cable trays, ladders and baskets (perforated or non-perforated), armoured cables, data cables, HV cables, cable bundles up to 100 mm.

Nullifire FB750 can be used on flexible walls & rigid walls (90 mm or wider), rigid floors (150 mm or wider), beneath raised access floors / suspended floors and ceiling voids, as a continuation of the fire compartment.

Which Nullifire systems are compatible with FB750 Intubatt?

When used with a Nullifire closer device (FS709 HP, FP302 Intustrap, FP220 Service Sleeve, FP170 Intucollar), FB750 Intubatt also becomes suitable for penetrating combustible services & conduits such as PVC, PE, PP, HDPE, PPR, PEX, Uponor and combustible ducting.

Nullifire FB750 Intubatt has also been tested to fire protect the underside of loaded timber floors for up to 120 minutes (BS 476 Pt 21). Typical areas of use include: health and leisure facilities, schools, universities, commercial buildings, hospitals, retail and industrial units and nuclear power plants.

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

This product should not be in direct contact with CPVC pipes; FS719 HP Blue for CPVC should be used on the full depth of the FB750 Intubatt, to the correct annular space. If used around Pegler X-Press Carbon Steel pipes, the pipe manufacturer should be consulted, and their recommendations followed.

Safety data sheet must be read and understood before use.

Benefits of using FB750 Intubatt

  • Up to 4 hours fire resistance – Tested to EN 1366-3 and BS 476 Pt 20/22.
  • Optifire® unique traceability identifier.Nullifire FB750 Intubatt Product Image
  • Acoustic & smoke sealing.
  • Air pressure tested up to 2000 Pa.
  • Suitable for use in flexible & rigid walls, rigid floors and under timber floors.
  • Easy to cut.
  • Allows for the thermal expansion of the services in ambiant conditions.


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Nullifire FB750 Intubatt Technical Data Sheet [PDF]

Download Nullifire FB750 Intubatt technical data sheet here.


Nullfire FB750 Intubatt Material Safety Data Sheet [PDF]

Download Nullifire FB750 Intubatt Material Safety Data Sheet here.


Nullifire FB750 Intubatt Declaration of Performance [PDF]

Download Nullifire FB750 Intubatt DoP here.


Nullifire FB750 Intubatt UL-EU Certificate [PDF]

Download the Nullifire FB750 Intubatt UL-EU Certificate here.