Shenzhen Petersburg Composite Materials Co., Ltd

This product is a high-performance pre-oxidized fiber flame-retardant insulation felt made of pre-oxidized polyacrylonitrile (PAN) fiber. It has excellent flame retardant properties, excellent thermal stability and mechanical strength. It is a multifunctional thermal protection material designed for electronic equipment, automotive systems and heavy industrial equipment. This material is an intrinsically flame-retardant fiber that does not melt or drip under high temperature conditions. It can effectively delay the spread of flames and prevent heat conduction. It is an important protective barrier to ensure the safe operation of equipment in high-risk environments. The product has good thermal insulation properties, and its low thermal conductivity can significantly reduce the thermal shock to sensitive components. It is suitable for applications that are exposed to heat sources for a long time, such as engine compartments, battery insulation layers, electronic distribution boards, transformers, control cabinets, etc. Even when used continuously in an environment of 300–400°C, it can maintain stable shape and structural integrity without decomposition or cracking. The material can still provide certain flame retardant protection when exposed to higher temperatures (up to 500°C) for a short time. In addition, the pre-oxidized fiber felt has excellent chemical resistance and can resist erosion by corrosive media such as oils, solvents, acid and alkali gases. It is suitable for heavy-duty machinery, petrochemical equipment and transportation systems. Its high mechanical toughness makes it difficult to tear or break even under high-frequency vibration, compression and tension stress conditions, and can meet the safety protection needs of multi-axis dynamic or moving parts. The material structure is lightweight and soft, easy to cut and install, and adapts to complex equipment geometries to improve installation efficiency and fit. Typical applications include: • Thermal shielding and flame retardant pads for automotive engines, battery packs and exhaust systems; • Insulation and thermal isolation layers for electrical components such as distribution boxes, cable troughs, circuit boards, etc.; • High temperature protection for industrial control cabinets, transformers, motors and pipeline equipment; • Insulation pads, fireproof layers and flame retardant barrier structures in high-risk fire environments. This pre-oxidized fiber insulation felt provides a solution that combines fire resistance, heat protection, mechanical protection and long-term stability. It is designed for modern industrial, electrical and transportation systems that require high safety and high temperature resistance to ensure that the equipment can still operate stably under extreme conditions.