Intumescent Seals - Fire & Smoke
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Astro Strip FS – Intumescent Seals (Fire & Smoke)
A high-performance intumescent seal designed for fire-rated timber doorsets. 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 doorsets
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.
Shipping & Returns
WHY CHOOSE PREMIER?
40+ Years of Trust
With over 40 years of combined experience, our team has been trusted by domestic and commercial customers across the UK. We work with fully certified, highly skilled independent installers - including those with FIRAS and BM Trada credentials -to deliver fire door sets you can rely on. Every product and service is backed by decades of hands-on expertise and a commitment to high-quality results.
No Quibble Returns
We want you to feel 100% confident when ordering with us. That’s why we offer No Quibble Returns on all eligible items.
- Items must be in original packaging, and in the same condition you received them.
- Bespoke or made-to-order items are non-refundable.
- Simply email us at sales@activefiresafety.com to request your return.
- We’ll send you a return label and instructions - we make it easy.
- Refunds are processed once your item is received and approved.
For more information, visit our Refunds & Returns Policy
Real Human Support
We get it! There’s nothing worse than needing help and only getting AI bots or auto-replies.
When you contact us, you’ll speak to a real person who knows fire safety and actually wants to help.
Whether you’ve got questions before buying or need support after your order, we’re here every step of the way. No ticket numbers, no frustrating loops, just real answers.
Straightforward Shipping
Shipping costs are clearly shown before you checkout. We work with trusted couriers to ensure smooth and fast trackable delivery straight to your door.
