Nullifire FJ203 Fire Resistant Backer Rod is a firestopping backer rod made from rock wool, sheathed with flexible glass wires. It is used to make fire-resistant expansion joints between masonry elements, wall and slab, directly exposed to fire or not, in hospitals, hotels, car parks, schools, airports, nuclear power plants etc.

FJ203 can be used alone or in combination with silicone sealant FS703, for fire sealing expansion joints up to 240 minutes (4 hours), for joint widths from 10 to 50mm, in wall and slab (see Efectis classification according to NF EN 13501-2).

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• Features & Benefits
• Instructions For Use
• Ordering References
• Technical Data

Features & Benefits

• Can be used alone or in combination with Nullifire FS703 Silicone Sealant
• Firestopping backer rod made from rock wool
• Used to make fire-resistant expansion joints between masonry elements
• Ideal for use in hospitals, hotels, car parks, schools, airports, nuclear power plants etc
• Classification reports for fire resistance up to 240 minutes (4 hours) according to NF EN 13501-2
• For joint widths from 10 to 50mm
• High regularity
• Packaged in long coils
• Good cohesion, easy to cut
• Movement capacity up to 20% (tested during fire test)

Instructions For Use

• The substrates must be solid, dust-free, degreased and free of anti-adherent agents
• Select the backer rod diameter according to the width of the seal - see Ordering References
• Apply the adhesive FO142 with a brush or FO143 in a cartridge on the lips of the joint
• Position the FJ203 on the fresh glue, compressing it into the joint
• When covering with a silicone sealant, the positioning of the backer rod should make it possible to respect the following ratio:
  
  • Depth = Width / 2
• For details on the application of FS703 Sealant, refer to the Technical Data Sheet

Ordering References

Technical Data

Please contact Rawlins Paints Technical Department on 0113 2455450 (option 2) or send a message to [email protected] for more information.

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 Conditions and should be applied only by an individual with the necessary expertise and experience. We 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.