FZ100 Fire Safe Zone

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FZ100 Fire Safe Zone is a revolutionary fire protection system, and a single product solution tested to cover many fire stopping requirements. Nullifire has developed a ground breaking and unique fire stopping technology: GXT (Graphite eXpansion Technology). GXT has been incorporated within FZ100, encompassing the ability of many fire protection products within a single sheet.

Fire Rating: 120 Minutes

Usage/purpose

FZ100 Fire Safe Zone is a fire compartment reinstatement solution for planned and future penetrating services. In the event of a fire, FZ100 will expand and reinstate the compartment line performance where it has been breached by service penetrations.

FZ100 may be located anywhere within a building element, either at the point of construction, or retrospectively fitted. This allows a designer to anticipate future fire sealing requirements, and to integrate FZ100 at strategic points within the building, where subsequent services may be located.

FZ100 product is placed centrally within the flexible wall cavity, allowing both high service movement, and an uninterrupted aesthetic appearance on all visible wall faces. It offers a quick and easy installation with zero potential waste.

Alternatively, FZ100 can be installed horizontally in an opening or in a shaft into floor elements, such as concrete, AAC or CLT.

FZ100 is ideally suited for use in modular application, where services may be located after the construction of the compartment.


Typical areas of use include: health and leisure facilities, schools, universities, modular construction, commercial buildings, hospitals, retail and industrial units, train stations, nuclear power plants, etc...

Always read SDS, technical handbook, available reports and relevant application details prior to application. Ensure the latest documents are downloaded prior to every project commencement.

A cold smoke seal must also accommodate the required building movement or service product thermal expansion.
FZ100 does not absorb moisture; however, it should not be installed unless dry.
Rock fibre/mineral wool insulation infill (min. 100 kg/m³) will be required to be removed to accomodate the FZ100 installation in the cavity.
If the partition wall is uninsulated (or insulated with any other material than rock fibre/mineral wool min 100 kg/m3), a steel frame must be provided to all sides of the FZ100 product (vertical stud being considered as steel framing).
Vertical C-channels / studs may not be removed to accomodate the FZ100 installation.
Minimum dimension of FZ100 should be 50mm larger to all sides than the anticipated area of the service penetration(s).
Minimum 100mm plasterboard separations will be required between service openings.
Maximum dimension of FZ100 is limited only by the size of the partition.
Services were tested with the first support at 250mm from partition face.
If stored below 0°C, the product must be placed in a +5°C and rising area for a minimum of 12 hours prior to application (this is to ensure the product does not contain moisture).

Safety data sheet must be read and understood before use.

  • Up to 2 hours fire resistance - Tested to EN 1366-3
  • Unique GXT technology
  • Fire stops existing & future service penetrations
  • Quick and easy to install: dry, easy to cut, lightweight
  • Fibre free: can be used in clean areas such as hospitals or food preparation facilities
  • Simple service installation
  • No odour
  • Building service movement
  • Tested to 66dB for acoustics
  • Fully breathable, does not absorb moisture
FZ100 Performance Tables (en-GB).pdf Performance Table
FZ100 Safety Data Sheet (en-GB) Safety Data Sheets
FZ100 Technical Handbook (en-GB).pdf Technical Guidance Document
FZ100 Technical Data Sheet (en-GB).pdf TDS
FZ100 FAQ Sheet (en-GB).pdf Brochure