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Everflex Fire-Fill Acrylic SealantVendor:
Use Everflex Fire-Fill for fire-rated sealing of penetrations and expansion joints, offering up to 4 hours of fire resistance per AS1530.4 and AS4072.1, with ±20% joint movement.- From $10.93
- From $10.93
- Unit price
- per
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Adheseal HV Duct Acrylic SealantVendor:
Use HV Duct High Velocity Duct Sealant for fire-rated sealing in HVAC and high velocity ductwork. It offers AS1530.3 compliance with a Smoke Developed Index of 3, non-corrosive performance on galvanised steel, and +/-5% movement capability, ensuring durable, airtight, and fire-safe installations.
- From $4.81
- From $4.81
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Bostik Fireban One Polyurethane SealantVendor:
Use Bostik Fireban One for fire-rated and acoustic sealing of construction joints. It offers up to 4 hours of fire resistance, 50% joint movement capability, and excellent durability, ensuring compliant and lasting performance.- From $16.73
- From $16.73
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- per
Frequently Asked Questions
How do fire-rated sealants work?
Intumescent fire-rated sealants expand when exposed to heat, filling gaps to block fire and smoke. The Everflex Fire-Fill and Bostik Fireban One are intumescent products rated for up to four hours under AS1530.4 and AS4072.1.
What fire rating do these sealants achieve?
The Everflex Fire-Fill (acrylic) and Bostik Fireban One (polyurethane) each achieve up to a four-hour fire resistance rating under AS1530.4 and AS4072.1. The HV Duct carries an AS/NZS 1530.3 smoke development index for duct sealing.
Can fire-rated sealants handle joint movement?
Yes, movement capability varies by product. The SA Sealproof silicone handles ±50% movement. The Fireban One polyurethane handles ±25%. The Everflex Fire-Fill acrylic handles ±20%. The HV Duct acrylic is rated at ±5% for low-movement duct penetrations.
What is the maximum joint width for fire-rated sealants?
The Bostik Fireban One accepts joints up to 50 mm wide. Check the product data sheet for each fire-rated sealant, as maximum joint width and minimum backing depth affect the fire rating. Incorrect installation can void the fire certification.
What chemistry are fire-rated sealants?
Fire-rated sealants use different chemistry types. The Everflex Fire-Fill and HV Duct are acrylic-based. The Bostik Fireban One is polyurethane-based. The SA Sealproof is a low-modulus silicone. Chemistry type does not affect the fire resistance rating.
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