Lixing Composite Materials LXFP-256 Series liquid silicone foam gaskets are engineered for electric vehicle (EV) battery PACKs and demanding electronic components . With the UL94 V-0 top flame-retardant rating and low-smoke, non-toxic performance to European standards , and in extreme environments from -55°C to 200°C they still maintain excellent airtight, waterproof sealing and high-rebound cushioning . Two hardness grades are offered, Shore C 25 and 50 , with custom thicknesses available .

In short, the Lixing LXFP-256 Series foam gasket is supplied as roll stock and converted to drawing for EV battery PACKs and electronics. It carries the UL94 V-0 flame-retardant rating with low-smoke, non-toxic compliance , and keeps its airtight waterproof seal and rebound across the full operating range of -55°C to 200°C.Choose Shore C 25 for softer compression or Shore C 50 for firmer support , and specify the thickness your assembly needs.

The LXFP256 Series is a liquid silicone foam elastomer engineered for harsh industrial environments. It is used primarily as a sealing gasket in electric vehicle (EV) battery enclosures, where it effectively dampens the jolts and vibration experienced during driving while meeting lightweight, automated and low-cost manufacturing requirements .

It combines excellent waterproof sealing, low specific gravity, high flame retardancy and strong resistance to compression set. Wrapped around the base of a traction battery or placed between modules, it delivers shock absorption, anti-slip vibration damping, sealing and thermal insulation . Lixing Composite Materials supplies roll stock in a range of thicknesses and can precision-convert it to specified dimensions on request .

Key Features

• Outstanding flame retardancy and environmental compliance: UL94 V-0 certified, with toxic gas emissions meeting the EN45545-2 R10 requirement level, and fully compliant with RoHS and REACH .

• Excellent heat and weather resistance: recommended continuous service temperature of -55°C to 200°C, with intermittent peaks of up to 280°C . Excellent resistance to UV and ozone .

• Fine, uniform cell structure: fine, evenly distributed cells and low water absorption (≤ 5%) provide excellent waterproofing, thermal insulation and vibration damping .

• High fatigue and deformation resistance: highly tolerant of mechanical fatigue, with low compression set and good creep resistance under long-term compressive load .

Main Applications

• Waterproof sealing and vibration protection for EV traction battery packs (PACK) .

• Protection for battery cells as they swell or contract during charge/discharge cycles, providing cushioning, sealing and thermal insulation .

• Flame retardancy, thermal insulation, vibration damping and component protection inside transportation equipment and electronic devices of all kinds .

Specifications and Technical Parameters

1. Hard grade: LXFP-256-HD50 (hardness 50 ± 5)

Designed for sealing structures that require higher support and higher tensile strength.

2. Soft grade: LXFP256-SD25 (hardness 25 ± 5)

Designed for lightweight applications that require high compressibility and a wide range of thicknesses (0.6 to 12.7 mm) .

Product Description

Product Overview

The LXFP-256 Series is a liquid silicone foam elastomer specifically engineered for harsh industrial environments. Primarily used as sealing gaskets for electric vehicle (EV) battery packs, this product effectively reduces bumps and vibrations during vehicle operation while meeting the manufacturing demands of lightweighting, automation, and cost-efficiency.

Featuring excellent waterproof sealing, low specific gravity, high flame retardancy, and superior resistance to compression set, it wraps around the bottom or modules of power batteries to provide exceptional cushioning, anti-slip shock absorption, and thermal insulation. Lixing supplies rolls in various thicknesses, which can be precision die-cut into custom dimensions according to client requirements.

Core Features

• Outstanding Flame Retardancy & Environmental Compliance: Certified to UL94 V-0 flame rating, with toxic gas emissions compliant with the European railway standard EN45545-2 R10. Fully compliant with RoHS and REACH regulations.

• Excellent Thermal & Weather Resistance: Recommended for continuous operation from minus 55 degrees Celsius up to 200 degrees Celsius, and can withstand intermittent peak temperatures of 280 degrees Celsius. Offers superb resistance to UV and ozone.

• Fine and Uniform Cell Structure: Features a delicate, uniform pore structure with low water absorption (less than or equal to 5%), delivering premium waterproof, sealing, and thermal insulation benefits.

• High Fatigue & Creep Resistance: Highly adaptable to mechanical fatigue, maintaining low long-term compression set and excellent resistance to stress relaxation.

Primary Applications

• Waterproof sealing, shock absorption, and component protection for electric vehicle (EV/HEV) power battery PACKs.

• Buffering and thermal protection against cell expansion and contraction during charge/discharge cycles.

• Flame-retardant, thermal-insulating, and vibration-damping protection inside electronic enclosures and transportation equipment.

Specifications & Technical Parameters

1. Rigid Specification: LXFP-256-HD50 (Hardness 50 plus/minus 5)

Designed for sealing structures requiring higher mechanical support and higher tensile strength.

2. Soft Specification:LXFP256-SD25 (Hardness 25 plus/minus 5)

Designed for lightweight applications requiring high compressibility and a wide thickness adaptability range (0.6 to 12.7 mm).