Fire Cloak has become one of the first EV fire limitation blankets to achieve full certification under DIN SPEC 91489:2024-11. Published in November 2024, this German standard represents the first regulated testing framework specifically developed for EV fire blankets.
Highlights
- Fire Cloak is among the first products globally to complete testing and certification under DIN SPEC 91489:2024-11
- The standard requires deployment by two people in 30 seconds or less on wet or dry vehicles
- Fire Cloak blankets are engineered to withstand temperatures up to 1,600°C
- Certification files are available for download at firecloak.co.uk
What DIN SPEC 91489:2024-11 Requires
The specification establishes a rigorous, evidence-based methodology for evaluating EV fire blanket construction, performance, and reliability. It was developed by fire-safety professionals, emergency services, vehicle manufacturers, and industry specialists.
Certification requires proven performance across multiple criteria:
- Thermal resistance assessed through EN ISO 13501-1 and a dedicated DIN furnace test replicating 700–1,000°C thermal runaway scenarios
- Deployment performance with a maximum 30-second deployment requirement by two people
- Mechanical strength, cut resistance, and load testing
- Material integrity including PFAS-free manufacture and resistance to oils, greases, extinguishing agents, and battery acids
- Storage durability including IP65-rated container testing
- Clear positioning markers for accurate deployment in low-visibility conditions
The certification process also requires photographic documentation, video capture of all testing stages, and independent thermal-resistance assessments.
Prior Testing and Specifications
Before DIN SPEC 91489:2024-11 existed, Fire Cloak blankets had completed independent fire-resistance testing under multiple standards:
- BS 476 Parts 6 & 7 – Class 0
- ASTM D6413 Vertical Flame Resistance
- FMVSS 302 Federal Motor Vehicle Safety Standard
- NFPA 701 Flame Retardancy
- BS 476 Part 22 Indicative Furnace Test – Resisted 1,000°C for 90 minutes
- EN ISO 13501-1:2018 – A2, s1, d0
The blankets are rated for temperatures up to 1,600°C, matching thermal conditions observed during lithium battery thermal runaway events.
Product Availability
Fire Cloak EV Fire Limitation Blankets are available in three standard sizes designed for lithium batteries, passenger vehicles, and larger commercial vehicles. A made-to-measure service is available for specialized applications.
The company, based in the UK, states it will continue working with regulators and fire-safety experts to advance EV fire mitigation standards.
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