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Fire Rated Expanding Foam

Fire Rated Expanding Foam

Fire Rated Expanding Foam

Whether you’re sealing around pipes, cables, or service penetrations, fire rated expanding foam offers a quick, efficient, and regulation-compliant solution. Designed to expand, fill, and insulate gaps while providing vital fire resistance, it’s a go-to product for both domestic and commercial construction where fire safety is a priority.

We stock a wide range of fire-resistant foams from top brands including Everbuild and Soudal. With trade discounts, bulk buying options, and fast UK delivery, we’re trusted by contractors and installers across the country.

What Is Fire Rated Expanding Foam?

Unlike standard PU foam, fire rated expanding foam is specifically formulated to resist the spread of flames, smoke, and heat. It expands on application to seal voids and can slow down the movement of fire and smoke through joints, cavities, and service penetrations.

Fire-rated foam is commonly used in:

  • Partition walls and service risers
  • Pipe and cable entries
  • Around window and door frames
  • Cladding and curtain wall systems

These foams are tested to national and European fire classifications, helping you meet the latest UK building regulations and fire safety standards.

 Fire Rated Expanding Foam | B1 & B2 Fire Foams for Trade & DIYFire Rated Expanding Foam – Safe, Reliable & Effective for Fire-Resistant Sealing - Sealant Supplies Ltd
 Fire Rated Expanding Foam | B1 & B2 Fire Foams for Trade & DIYFire Rated Expanding Foam – Safe, Reliable & Effective for Fire-Resistant Sealing - Sealant Supplies Ltd

Looking to order in bulk?

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Key Benefits of Fire Rated Foams

Here’s why tradespeople and specifiers rely on fire rated foam in high-risk applications:

  • Slows the spread of fire – adds crucial minutes for safe evacuation
  • Expands to fill gaps – creating a tight seal against fire, smoke, and gas
  • Quick and easy to apply with a foam gun or nozzle
  • Thermal and acoustic insulation properties
  • Adheres to most building substrates including masonry, concrete, wood, and metal

Our Recommended Fire Rated Expanding Foams

Here are three popular and trusted options from our range:

  • Everbuild Thermofoam Gun Grade
    A professional-grade, expanding foam designed for thermal and acoustic insulation with fire retardant properties. Ideal for airtightness around windows and doors in passive house or low-energy projects. Fire rated up to 2 hours.
  • Everbuild Firefoam B1 Gun Grade
    Tested to the highest B1 fire rating, this foam is suited to high-risk applications including service voids, partitions, and ceiling gaps. It offers excellent dimensional stability, low expansion, and strong adhesion.
  • Soudal B2 Expanding Fire Foam (750ml)
    This B2-rated fire foam offers an effective solution for standard fire-resistance requirements. It’s easy to apply, dries quickly, and offers strong adhesion to concrete, brick, stone, and timber.

All options are available for bulk order, with competitive trade prices for regular customers and contractors.

How to Apply Fire Rated Foam Safely and Effectively

Correct application is key to ensuring full fire performance. Here are some expert tips:

  1. Shake the can well before use and apply using a compatible foam gun or nozzle.
  2. Pre-dampen the surfaces to improve adhesion and curing.
  3. Apply in layers for deep gaps, allowing each layer to expand and set.
  4. Once cured, the foam can be cut, sanded, and painted as needed.
  5. Always follow the manufacturer’s fire rating guidance, including maximum gap width and joint design.

For fire-stopping around services, always refer to building control or a fire engineer for final sign-off.

Why Buy From Sealant Supplies?

We’ve supplied fire-rated products to the trade for years, with a deep understanding of what contractors need on-site:

  • Trusted UK brands
  • Bulk buying and trade discounts
  • Fast delivery across the UK
  • Technical advice from our expert team

We’re committed to helping you stay compliant and keep your projects running on time and on budget.

Need Help Choosing the Right Fire Foam?

Every application is different. Whether you need a B1-rated foam for passive fire protection or a cost-effective option for general use, our team is here to help.