Fire Retardant & High Temperature Sealants
Fire rated sealant from Soudal seals service penetrations, control joints, and construction gaps in fire-rated walls and floors, maintaining the fire and smoke resistance of the assembly, alongside high-temperature silicones for continuous heat exposure. The range covers acrylic, silicone, and hybrid fire rated sealants, fire rated expanding foam, and high-temperature silicones.
Passive fire protection that holds its rating and its flexibility.
Fire rated sealants and foams are tested as part of a specific joint configuration, sealing gaps against fire, smoke, and gas so a fire-rated wall or floor keeps its rating. MS Polymer and silicone-based fire sealants stay elastic after cure so rated joints keep moving with the building, while acrylic-based products add acoustic attenuation for party walls and separating floors. High-temperature silicones handle continuous heat in flues, engine bays, and industrial applications. See our passive fire application pages for context, and confirm the specific fire test report before installation.
FRHT – Fire Retardant Sealant Solutions with High Temperature Resistance
High Temperature Sealants
Soudal Fire Range & High Temperature Products
Soudal’s fire-rated and high temperature resistant sealants and adhesives are specifically designed for demanding environments. Our FRHT (Fire Retardant Sealant Solutions) ensure fire safety compliance and thermal stability, offering reliable performance in extreme heat applications. From Firecryl FR to Silirub HT, Soudal’s range provides superior bonding and sealing solutions for high-temperature environments, making it perfect for industrial, construction, and safety-critical projects.
Why Trades Choose Soudal FRHT Products:
- Resistant to extreme heat, ensuring long-lasting performance in high-temperature conditions.
- Fire retardant to meet building codes and safety standards.
- Strong adhesion to a wide range of substrates for secure bonding.
- Available in silicones, sealants, specialist cements, and foams for versatile applications.
Our Fire Range and High Temperature Products Include:
- Firecryl FR: Prevents fire and smoke passage, intumescent, and designed for indoor applications.
- Soudseal FR: High fire retardation, suitable for both indoor and outdoor use, and permanently elastic.
- Soudafoam FR HY: 25% more foam for increased yield, with high filling capacity and excellent bonding properties.
- Soudafoam GUN FR HY: Gun grade, providing 25% more foam and high bonding properties for professional use.
High Temperature Sealants:
- Silirub HT A: Permanently elastic, temperature resistance up to 285°C, with a typical acetic smell.
- Firecement HT: Asbestos-free, temperature resistance up to 1500°C, with a fire rating of 120 minutes.
- Silirub HT N: High modulus, permanently elastic after curing, and temperature resistance up to 280°C.
When to use Soudal Fire Range & High Temperature Products:
- Sealing fire-rated joints and service penetrations to prevent fire spread.
- Bonding materials exposed to high heat in industrial settings.
- Industrial ovens, flues, and chimneys requiring high temperature resistance.
Where to buy
Find Soudal fire and high-temperature products through trade merchants and hardware stores across Australia. Use our store locator to find your nearest stockist, or contact us for technical advice on your project.
Fire Range & High Temperature FAQs
What is a fire rated sealant used for?
Fire rated sealant seals gaps, joints, and service penetrations in fire-rated walls, maintaining the assembly’s fire and smoke resistance rating as tested under the relevant standard.
Does fire rated sealant have to match a tested system?
Yes. Fire rated sealants are tested as part of a specific joint configuration, including width, depth, and backing material. Installation must follow the tested system in the product’s fire test report to maintain the rating.
What's the difference between fire rated and high-temperature sealant?
Fire rated sealant is tested to seal a fire-rated assembly against fire, smoke, and gas. High-temperature sealant is formulated to withstand sustained heat, such as in flues and engine bays, and is not a substitute for a tested passive fire product.
Is fire rated sealant flexible after it cures?
It depends on the chemistry. MS Polymer and silicone-based fire sealants stay elastic to allow joint movement, while acrylic-based fire sealants are generally rigid once cured.
Can fire rated sealant be used outdoors?
Some fire rated sealants are UV resistant and suited to external use, but this should always be confirmed with the supplier that you have chosen the correct product to withstand those conditions.