Intelligent Design

Every stitch, seam and material choice in Fire Cloak™ serves a purpose — maximum protection when it matters most.

Fire Cloak™ is engineered with purpose.

Every detail — from the weave of the fabric to the stitching of the seams — has been designed with a clear function: to protect against extreme heat, to deploy quickly and safely, to remain durable in storage, and to perform reliably in the real world. Nothing is there by chance.

Materials selected for performance.

  • Yarn — specified to an exact gauge and twist profile to ensure consistent strength and fire resistance.

  • Weave — optimised for density and structure, giving the blanket both exceptional heat resistance and the flexibility needed to deploy quickly and safely.

  • Coating — a fire-resistant and waterproof silicone finish, tested across multiple formulations to achieve the optimum balance of durability and protection.

  • Thread — high-strength, temperature-resistant sewing thread sourced from Europe to ensure the seams hold under extreme thermal stress.

Seams and reinforcement where it matters most.

  • Seams — high-strength flat-fell seams create robust joints that maintain integrity even under extreme heat. Edge overlaps protect against wear and mechanical damage.

Deployment straps detail on the Fire Cloak EV Fire Blankets
  • Deployment straps — made from triple-skin fire-resistant textiles, reinforced at the corners with additional fabric layers and double-stitched for strength under pressure.

Every design choice has one purpose: to deliver maximum protection when it matters most.

Tested. Certified. Proven.

Fire Cloak™ has been pushed through rigorous international standards, including:

  • BS 476 (Class 0 rating, Furnace Test at 1,000°C for 90 minutes)

  • ASTM D6413, FMVSS 302, NFPA 701, ISO EN 13501-1

  • Tested, Passed and Certified to DIN SPEC 91489:2024-11 — the world’s first standard for EV fire limitation blankets

Other suppliers may claim compliance. We provide the certification.

Download our DIN SPEC 91489:2024-11 test reports below,
or discover more about our testing and certification process for full technical detail.

For anything else, contact our technical team.

Fire Cloak™ EV Fire Limitation Blanket (8 x 6m)

Fire Cloak™ XL – EV Fire Limitation Blanket (12 x 9m)

UK manufacturing for quality and flexibility.

Every Fire Cloak™ is manufactured in the UK under ISO 9001 process controls, with regular spot checks and direct oversight. This ensures:

  • Consistent quality across every unit produced

  • Short lead times for volume supply

  • Flexibility to create bespoke sizes and applications

Designed for the risks of tomorrow.

Lithium battery technology is evolving fast — and so are the risks. That’s why we continually evaluate new materials, coatings, and seam technologies, ensuring Fire Cloak™ remains at the forefront of fire containment solutions across vehicles, storage, and industrial environments.

Because when lithium batteries compromise, Fire Cloak™ doesn’t.

Fire Cloak™. Pushed to its absolute limit, so that you never have to be.

1,600°C

Fire Cloak™ withstands temperatures of up to 1,600 °C — containing lithium battery fires that can surge from 100°C to 1,000°C in seconds.

How Fire Cloak™ works

View our range of Fire Limitation Blankets for Lithium Batteries and Electric Vehicles →

View our range of Fire Limitation Blankets for Lithium Batteries and Electric Vehicles →

For more information and expert advice,
drop us a message.

Get in touch

Fire Cloak™
14-16 Gleadless Road
Sheffield
S2 3AB
UK

T: +44 (0)114 255 7700
F: +44 (0)114 255 7171
E: sales@firecloak.co.uk

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