On every project, compliance with Australian Standards isn’t just a box to tick, it’s what keeps people safe and buildings performing as they should. Passive fire protection (PFP) is central to that responsibility. By stopping fire and smoke from spreading through joints and compartments, the right systems protect lives, protect assets, and give everyone on site confidence that the structure will hold when it matters most.
One of the most effective strategies in joint fire protection is a layered approach, using an intumescent fire strip together with a fire-rated sealant. At Danterr, we proudly supply Promaseal® FyreStrip and Promaseal® A Acrylic Sealant as a combined solution for AS 1530.4-compliant joints in walls and floors.
Construction professionals should consider these products together, where they’re most effective, and when to look at alternatives such as Bostik Fireban® One for dynamic joints.
How Intumescent Strips and Fire Sealants Work Together
Promaseal® FyreStrip – The Core Fire Barrier
The Promaseal® FyreStrip is a highly compressible, flexible intumescent strip designed for use in static expansion joints. Manufactured with Grafitex intumescent layers, it expands up to nine times its original size at ~185 °C, sealing gaps and preventing fire spread.
- Tested fire performance: Up to 240 minutes fire resistance (AS 1530.4:2014)
- Applications: Slab-to-wall joints, compartment walls, lightweight partitions
- Key benefit: Maintains compartment integrity during fire events
Promaseal® A Acrylic Sealant – The Finishing Layer
The Promaseal® Acrylic Fire Rated Sealant complements the FyreStrip by sealing visible joint surfaces. While the strip provides the primary firestop barrier, the sealant ensures:
- Smooth finish and airtight seal
- Improved acoustic performance (noise dampening in walls and slabs)
- Smoke control and compliance with AS 1530.4
Together, the FyreStrip and Acrylic Sealant provide a layered passive fire protection solution that strengthens compliance while improving aesthetics and functionality.
Your Next Project, Simplified with Danterr!
Enter your email to explore our top-quality construction solutions. We’re here to support your project’s needs with innovative, sustainable products.
Catalogue Form
Where Layered Fire Protection Delivers Value
Transport Infrastructure: Expansion joints in tunnels and bridges demand long fire resistance times. A core Promaseal® FyreStrip ensures the fire barrier, while Promaseal® Acrylic Fire Rated Sealant completes the system with airtight, NCC-compliant finishing.
Public Facilities: Schools, defence facilities, and healthcare projects often require both fire compartmentalisation and acoustic control. The dual system delivers tested AS 1530.4 fire resistance while also improving occupant comfort.
High-Rise & Civil Construction: Slab-to-wall gaps in podium levels or commercial towers are secured with the layered system, maintaining compartment integrity and meeting compliance standards through proven AS 1530.4 testing.
When to Use an Alternative: Fireban One
Not all joints are static, and in projects where movement and exterior exposure are key factors, a different approach is required. When projects demand dynamic performance, such as precast panels, tilt-up construction, or external façades — Danterr recommends Bostik Fireban® One as a standalone solution.
Tested to AS 1530.4 with up to 4 hours of fire resistance, Fireban® One provides ±25% joint movement capability, excellent adhesion, and proven UV and weather resistance, making it ideal for exterior or exposed joints. It’s designed to complement, but not replace, the FyreStrip + Acrylic system, ensuring the right solution is specified for the right joint condition.
Why Choose Danterr for Passive Fire Protection
- AS 1530.4 compliant products
- Australia-wide delivery for projects large and small
- On-site technical guidance for specifying fire-rated joint systems
- Reliable stock and fast turnaround to keep construction programs on track
Conclusion
Using Promaseal® FyreStrip with Promaseal® Acrylic Fire Rated Sealant creates a robust, layered firestop construction solution for static joints. This combination ensures compliance, safety, acoustic control, durability, making it an ideal choice for high-performance projects in Australia.
For dynamic joints, Bostik Fireban® One is the alternative solution, offering flexibility and weatherproof protection.
: 
: Frequently Ask Questions (FAQs)
While the strip provides the main fire barrier, a fire-rated sealant like Promaseal® Acrylic finishes the joint. It creates an airtight seal, improves acoustic performance, and helps the system meet AS 1530.4 compliance.
They’re best suited for static joints in infrastructure and building projects — including tunnel expansion joints, bridges, schools, defence facilities, hospitals, podium slabs, and high-rise towers — where compartment integrity and fire resistance are critical.
Use Fireban® One for dynamic or exterior joints, such as precast panels, tilt-up walls, and curtain walls, where flexibility and UV/weather resistance are required. It provides up to 4 hours of fire resistance (AS 1530.4) with ±25% movement capability.
No. Fireban® One is a standalone solution. It complements Danterr’s range by covering different joint conditions, but it is not designed to be used in combination with FyreStrip + Acrylic in a single joint.
Yes. The FyreStrip + Acrylic system improves both fire resistance and sound insulation, making it especially valuable for public facilities like schools and healthcare projects where occupant comfort matters.