Pre-oxidized PAN Felt 1200g/m2 10-10.5mm 450C Aluminum Foil Scrim Laminated Battery Fire Barrier Roll 1m x 30m

WS-PF1200E Pre-oxidized PAN Felt with Aluminum Foil

1200 g/m² needle-punched pre-oxidized polyacrylonitrile (PAN) felt, laminated with aluminum foil scrim laminated, supplied as battery fire barrier roll of 1 m wide by 30 m long.

Pre-oxidized fiber is produced by air oxidation of polyacrylonitrile fiber at 200-300°C, which builds a partial cyclic molecular structure and converts the thermoplastic filament into a black, non-melting thermoset fiber. It is the intermediate product for carbon fiber, with a fiber density of 1.40 g/cm³, tensile strength of 1.4 cN/dtex, elongation of 23%, modulus of 5 GPa, limiting oxygen index of 40-60, decomposition temperature of 640°C or above and a moisture regain of 9%. Because the fiber neither melts nor shrinks in flame, the felt keeps its shape and keeps reflecting radiant heat after the foil facing is charred, without any molten droplet that could cause secondary injury.

Key Features

• Non-flammable, non-melting and non-dripping in service up to 450°C, decomposition temperature 640°C or above
• Limiting oxygen index 40-60, self-extinguishing once the ignition source is removed
• No shrinkage, no softening, no molten droplets and no secondary injury risk
• Aluminum foil facing reflects radiant heat and acts as a vapour barrier
• No heat shrinkage and no thermal cracking under rapid temperature cycling
• Resistant to acids, alkalis and most chemical solvents
• Flexible needle-punched structure, easy to cut, sew and fix with eyelets
• 100% pure pre-oxidized PAN, completely asbestos free and lightweight

Technical Specification

Typical Applications

• Thermal runaway propagation barrier between battery modules
• EV pack and energy storage cabinet fire shielding
• Thermal barrier layers in charging infrastructure

Further Applications of Pre-oxidized Fiber

• High temperature gas and dust filtration bags for power plants, metallurgy, steel, carbon black and cement plants
• Fire protection of aircraft, ship, train and vehicle interiors: thermal insulation, trim and seat covers
• Heat and flame resistant protective wear: protective clothing, flame retardant workwear, fire blankets, escape blankets and racing suits
• Flame retardant textiles for hotels, shopping malls and theatres: curtains, beddings and carpets
• Carbonization feedstock for carbon-carbon composites in the photovoltaic industry, giving low ash, high strength and long service life
• Para-aramid and pre-oxidized fiber blended yarns (60/40, 50/50, 30/70) for firefighter fabrics, with further performance gains when aluminium foil faced

Packing and Delivery

Each roll is wound on a cardboard core, wrapped in a PE bag and packed with desiccant, then palletised and stretch wrapped for sea freight. Custom roll widths, lengths, eyelet spacing and printed labels are available on request.

Request a quotation with your required density, roll size and quantity - our technical team will confirm lead time and freight within one working day.