Key Takeaways
Use fire-resistant sealants and foams to protect joints in industrial, prefab, and high-rise construction.
We offer hybrid, acrylic, and polyurethane foam technologies for your specific fireproofing needs.
Products like Soudaseal FR, Firecryl FR, and Soudafoam FR HY are tested to strict Australian standards.
These systems are ideal for walls, floors, partitions, and expansion joints where building codes require fire protection.
Fire-Resistant Joint Sealing
Protecting buildings from fire requires specialist sealants that maintain their integrity under massive heat. Standard products melt and allow fire to spread rapidly between rooms. You need certified systems formulated specifically to resist high temperatures and stop smoke penetration.
Our fireproof range gives you complete protection across different building materials. Soudaseal FR is an SMX hybrid polymer. It is perfect for prefabricated and high-rise construction joints. It delivers excellent fire resistance while remaining highly flexible to absorb structural movement.
Firecryl FR is our intumescent acrylic sealant. This means it swells and expands when exposed to high heat. The swelling action forms a dense char layer that blocks the gap and stops the fire from spreading.
For larger cavities and service penetrations, Soudafoam FR HY expands to fill the entire joint. It creates an airtight and fireproof barrier in floors and walls. For extreme heat areas like furnaces, Firecement HT provides a hard-setting seal that withstands massive temperature spikes.
Ready to start your project? Use our Store Locator to find your nearest Soudal stockist and grab the right fireproof tools today.
FAQs
How do I seal service penetrations like pipes and cables?
You need a product that expands to close the gap if a plastic pipe melts during a fire. Firecryl FR is an intumescent acrylic that swells under heat to crush the melting pipe and block the hole. For large clusters of electrical cables, use Soudafoam FR HY to easily fill the irregular voids between the wires.
Which fire sealant is best for expansion joints?
Structural expansion joints require a flexible product that can handle daily movement. Standard acrylics will crack under this stress. You must use an SMX hybrid polymer like Soudaseal FR. It provides certified fire resistance while stretching easily to accommodate the building’s natural shifting.
What should I use to seal around a fireplace or furnace?
These extreme environments require a hard-setting product rather than a flexible sealant. Firecement HT is designed specifically for these high-heat applications. It withstands massive temperature spikes without degrading. This makes it perfect for assembling cast iron flues or sealing fireplace bricks.
Do I need special backing rods for fire-rated joints?
Yes. You cannot use a standard polyethylene backing rod. Standard foam melts instantly in a fire and ruins the integrity of your seal. You must pack the deep joint with a non-combustible material like mineral wool before you apply your chosen fire sealant. This ensures the entire assembly meets building safety codes.