Intumescent Seals - Fire & Smoke
Astro Strip FS – Intumescent Seals (Fire & Smoke)
A high-performance intumescent seal designed for fire-rated timber door-sets. Astro Strip FS provides both fire and cold smoke protection, making it ideal for upgrading or maintaining fire door compliance in commercial and residential buildings.
Key Features:
- Provides up to 60 minutes fire resistance
- Integrated brush or blade smoke seal for cold smoke protection
- Tested to BS 476 Part 22 and BS EN 1634-3
- Certifire approved and suitable for new or retrofit installations
Construction:
- Thermoplastic graphite-based intumescent core
- PVC outer sleeve with integral smoke brush/blade
- Expands during fire to seal gaps and block smoke spread
Standard Sizes:
- 30-minute protection:
- 10mm x 4mm x 2100mm (AF1004 FS)
- 15mm x 4mm x 2100mm (AF1504 FS)
- 60-minute protection:
- 20mm x 4mm x 2100mm (AF2004 FS)
- 25mm x 4mm x 2100mm (AF2504 FS)
Installation:
- Self-adhesive backing for quick, clean application
- Fits easily into fire door rebates or onto frame edges
- Compatible with FD30 and FD60 door-sets
Applications:
- Timber fire doors in flats, corridors, offices, schools, and healthcare buildings
- Suitable for both new installations and retrofit upgrades
Ordering:
- Supplied in 2.1m lengths
- Specify size, quantity, and colour when ordering
- Common colour options: white & brown
Ensure compliance and safety with Astro Strip FS — a reliable, dual-purpose seal that meets fire and smoke protection standards.
Request Pricing
Tell us your requirements and we will review your specification against certified fire door systems.
Our team ensures compatibility, correct fire rating, and full documentation before issuing your quote.
NOTE: Our customer service team may be assisting other callers.
If you’re unable to reach us by phone, please email sales@premierfiredoors.com
A member of our team will provide a quotation as soon as possible.
Compliance & Certification
Fire doors must be fully traceable and supported by valid test evidence. All our products are backed by third-party certification and supplied as part of a compliant, tested system, not individual components.
Installation Guidance
Correct installation is essential to achieving fire performance. We provide technical guidance to ensure your door is installed in line with tested evidence, BS standards, and manufacturer requirements.
Delivery & Lead Times
Lead times vary depending on specification, finish, and configuration. We provide clear timelines and updates to support project planning and avoid delays on site.
Fire Doors are a System, not just a Door Leaf.
Compliance is achieved through correct specification, compatible components, and tested assemblies. Incorrect decisions at specification stage often lead to failed inspections, delays, and costly rework. Do not gamble with safety.
Ready to specify?
Provide your project details, quantities and specifications and our team will issue a structured quotation based on certified system requirements.
Not sure what you need?
Use our configurator to build a door based on your project requirements. We’ll guide you through key decisions like fire rating, sizing, glazing, and finish, so nothing critical is overlooked.
Supplied from certified, trusted manufacturers
