Nullifire FJ200 Flexible Intumescent Gap Seal


We no longer stock this product, but can recommend Firetherm Intuspan as a great alternative.



We no longer stock this product, but can recommend Firetherm Intuspan as a great alternative.

Nullifire FJ200 Flexible Intumescent Gap Seal is elastomeric foam laminated with a graphite based intumescent compound on both sides. It is designed to perform as a 2 hour barrier in construction movement joints, when tested to EN 1366-4 and BS476. 

Designed for long linear installations in horizontal and vertical applications which when exposed to fire expands protecting penetrations including cables, cable bunches, cable trays, plastic and metallic pipes. FJ200 maintains the integrity and insulation performance of the seal through masonry/blockwork walls. 

Usage & Purpose

FJ200 can provide up to 2 hours fire protection, acoustic and smoke seal to building gaps and movement joints, whilst offering up to 50% movement. Typical areas of use include health and leisure facilities, schools, universities, commercial retail and industrial buildings. Increased movement capabilities may be achieved by using a larger FJ200 size required for the gap width. It can also be used as a fire barrier inside cable trunkings allowing for the installation of further cables. 

Features & Benefits

  • Certified to the latest European standards
  • EN 1366-4 and BS 476
  • Certified 3rd party accreditation CF 5265
  • Joint movement capability of ±50%
  • Air Permeability testing to EN 1026 to 600 Pa
  • 100 Pa 3.3/1.7 m3/h/m² with FS701
  • Acoustics up to 18 dB
  • Tested for use in linear gaps up to 150 mm
  • Tested with cables, cable bunches, cable trays and cable trunking 

IMPORTANT FIRE PRODUCTS NOTICE: The information displayed on this website should be used as a guide ONLY and our Technical Department should be contacted to obtain a tailored specification and any advice necessary before you place an order for fire protection products. Fire protection products are non-returnable except in accordance with Condition 8 of the Terms and ConditionsWe will not be held liable for any resulting damage to property, human life or monetary costs incurred due to the incorrect specification you have prepared or use of fire protection products caused by your negligence, including your failure to have contacted us to obtain the relevant advice/specification.

Product Details

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

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