LXFP256 系列是一款專為嚴苛工業環境設計的液態矽膠發泡彈性體 。本產品主要用作新能源汽車電池箱的密封墊圈，能有效減少電動汽車在運行過程中的顛簸與震動，同時滿足輕量化、自動化與低成本的製造需求 。
其具備極佳的防水密封性、低比重、高阻燃與抗壓縮形變特性，包裹於動力電池底部或模組間，可完美發揮抗震緩衝、防滑防震與密封保溫效果 。立興複合材料可提供不同厚度的卷材，並可依客戶需求精密加工成指定尺寸 。
核心特性
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優異的阻燃與環保性能：通過 UL94 V-0 阻燃認證，有毒氣體排放等級符合 EN45545-2 R10 標準，且完全符合 RoHS 和 REACH 環保規範 。
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卓越的耐溫與耐候性：推薦連續使用溫度達攝氏零下 55 度至 200 度，間歇性最高溫可承受攝氏 280 度 。具備極佳的抗紫外線與抗臭氧能力 。
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結構細膩均勻：孔徑細膩均勻，吸水率低（小於或等於 5%），提供優異的防水與隔熱減震性能 。
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高抗疲勞與抗形變：非常適應機械疲勞，在長期受壓下具備良好的抗壓縮永久形變及抗蠕變性 。
主要應用領域
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新新能源汽車動力電池包（PACK）的防水密封與減震保護 。
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電池芯因充放電產生膨脹或收縮形變時起保護作用，主要起抗震緩衝、密封保溫等效果 。
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各類交通運輸設備、電子設備內部的阻燃、隔熱、減震及元器件防護 。
產品規格與技術參數表 (Specifications)
1. 硬質規格：LXFP-256-HD50（硬度 50正負5）
主要針對需要較高支撐力、高拉伸強度的密封結構設計。
| 測試項目 | 參數指標 | 測試標準 |
| 外觀顏色 | 黑色 |
目視 |
| 標準厚度 | 2正負0.2 毫米 |
厚度規 |
| 標準寬度 | 1000正負20 毫米 |
直尺 |
| 邵氏硬度 | 50正負5 Shore C |
邵氏A型硬度計 |
| 材料密度 | 0.72正負0.06 克/立方公分 |
ASTM D1056-14 |
| 壓縮應力應變 (25度) | 25%壓縮時大於或等於 0.260 MPa / 50%壓縮時大於或等於 0.73 MPa |
ASTM D1056-14 |
| 壓縮永久形變 | 100度、24小時 條件下小於或等於 5% |
ASTM D1056-14 |
| 拉伸強度 | 大於或等於 1.35 MPa |
ASTM D412-2 |
| 斷裂伸長率 | 大於或等於 90% |
ASTM D412-2 |
| 吸水率 | 小於或等於 5% |
ASTM D570-98 |
| 抗腐蝕性能 | 通過鹽水浸泡前後外觀與厚度形變小於或等於 10% 為合格 |
GB/T7759.1-2015 |
| 絕緣強度 | 9 Kv/mm（在 1000VDC 下絕緣電阻大於 600兆歐） |
1000VDC 測試條件 |
| 熱導率 | 小於 0.145 W/(m·K) |
GB/T10294 |
| 介電常數 | 1.36 F/m |
GB/T 5597 |
| 體積電阻率 | 1乘以10的14次方 歐姆·公分 |
ASTM D257 |
| 推薦使用溫度 | 攝氏 零下55度 至 200度 |
工廠推薦 |
| 最高間歇溫度 | 攝氏 280度 (可承受 30分鐘) |
工廠推薦 |
2. 軟質規格：LXFP256-SD25（硬度 25正負5）
主要針對高壓縮性、大範圍厚度適應性（0.6 至 12.7 毫米）的輕量化應用 。
| 測試項目 | 參數指標 | 測試標準 |
| 外觀顏色 | 白色、灰色、黑色、紅色 |
目視 |
| 標準厚度範圍 | 0.6 至 12.7 毫米 |
厚度規 |
| 標準寬度 | 1000正負20 毫米 |
直尺 |
| 邵氏硬度 | 25正負5 Shore C |
邵氏C型硬度計 |
| 材料密度 | 375正負50 kg/m3 (約 0.375 克/立方公分) |
ASTM D1056-14 |
| 壓縮應變應力 | 25%壓縮時為 100正負35 KPa |
ASTM D1056-14 |
| 壓縮永久形變 | 100度、24小時 條件下小於或等於 5% |
ASTM D1056-14 |
| 拉伸強度 | 470正負150 KPa |
ASTM D412-2 |
| 斷裂伸長率 | 大於或等於 85% |
ASTM D412-2 |
| 吸水率 | 小於或等於 5% |
ASTM D570-98 |
| 抗腐蝕性能 | 通過鹽水浸泡前後外觀與厚度形變小於或等於 10% 為合格 |
GB/T7759.1-2015 |
| 絕緣強度 | 大於或等於 3 Kv/mm（在 1000VDC 下絕緣電阻大於 500兆歐） |
1000VDC 測試條件 |
| 熱導率 | 約 0.12 W/(m·K) |
GB/T10294 |
| 介電常數 | 1.32 F/m |
GB/T 5597 |
| 體積電阻率 | 1乘以10的14次方 歐姆·公分 |
ASTM D257 |
| 推薦使用溫度 | 攝氏 零下55度 至 200度 |
工廠推薦 |
| 最高間歇溫度 | 攝氏 280度 (可承受 30分鐘) |
工廠推薦 |
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 Composite Material provides rolls in various thicknesses, which can be precision die-cut into custom dimensions according to client requirements.
Core Features
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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.
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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.
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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.
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High Fatigue & Creep Resistance: Highly adaptable to mechanical fatigue, maintaining low long-term compression set and excellent resistance to stress relaxation.
Primary Applications
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Waterproof sealing, shock absorption, and component protection for electric vehicle (EV/HEV) power battery PACKs.
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Buffering and thermal protection against cell expansion and contraction during charge/discharge cycles.
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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.
| Test Item | Parameter Indicator | Test Standard |
| Appearance / Color | Black |
Visual |
| Standard Thickness | 2 plus/minus 0.2 mm |
Thickness Gauge |
| Standard Width | 1000 plus/minus 20 mm |
Ruler |
| Shore Hardness | 50 plus/minus 5 Shore C |
Shore A Hardness Tester |
| Material Density | 0.72 plus/minus 0.06 g/cm3 |
ASTM D1056-14 |
| Compression Force Deflection (25C) | 25% deflection greater than or equal to 0.260 MPa / 50% deflection greater than or equal to 0.73 MPa |
ASTM D1056-14 |
| Compression Set | Less than or equal to 5% (under 100C for 24 Hours) |
ASTM D1056-14 |
| Tensile Strength | Greater than or equal to 1.35 MPa |
ASTM D412-2 |
| Elongation at Break | Greater than or equal to 90% |
ASTM D412-2 |
| Water Absorption | Less than or equal to 5% |
ASTM D570-98 |
| Corrosion Resistance | Passed (appearance/thickness change less than or equal to 10% after saltwater immersion) |
GB/T7759.1-2015 |
| Dielectric Strength | 9 Kv/mm (Insulation resistance greater than 600 Megohms at 1000VDC) |
1000VDC Conditions |
| Thermal Conductivity | Less than 0.145 W/(m·K) |
GB/T10294 |
| Dielectric Constant | 1.36 F/m |
GB/T 5597 |
| Volume Resistivity | 1 times 10 to the 14th power Ohm·cm |
ASTM D257 |
| Recommended Operating Temp. | Minus 55 to 200 degrees Celsius |
Factory Rec. |
| Max Intermittent Temp. | 280 degrees Celsius (Up to 30 mins) |
Factory Rec. |
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).
| Test Item | Parameter Indicator | Test Standard |
| Appearance / Color | White, Gray, Black, Red |
Visual |
| Standard Thickness Range | 0.6 to 12.7 mm |
Thickness Gauge |
| Standard Width | 1000 plus/minus 20 mm |
Ruler |
| Shore Hardness | 25 plus/minus 5 Shore C |
Shore C Hardness Tester |
| Material Density | 375 plus/minus 50 kg/m3 (approx. 0.375 g/cm3) |
ASTM D1056-14 |
| Compression Deflection Stress | 100 plus/minus 35 KPa at 25% deflection |
ASTM D1056-14 |
| Compression Set | Less than or equal to 5% (under 100C for 24 Hours) |
ASTM D1056-14 |
| Tensile Strength | 470 plus/minus 150 KPa |
ASTM D412-2 |
| Elongation at Break | Greater than or equal to 85% |
ASTM D412-2 |
| Water Absorption | Less than or equal to 5% |
ASTM D570-98 |
| Corrosion Resistance | Passed (appearance/thickness change less than or equal to 10% after saltwater immersion) |
GB/T7759.1-2015 |
| Dielectric Strength | Greater than or equal to 3 Kv/mm (Insulation resistance greater than 500 Megohms at 1000VDC) |
1000VDC Conditions |
| Thermal Conductivity | Approx. 0.12 W/(m·K) |
GB/T10294 |
| Dielectric Constant | 1.32 F/m |
GB/T 5597 |
| Volume Resistivity | 1 times 10 to the 14th power Ohm·cm |
ASTM D257 |
| Recommended Operating Temp. | Minus 55 to 200 degrees Celsius |
Factory Rec. |
| Max Intermittent Temp. | 280 degrees Celsius (Up to 30 mins) |
Factory Rec. |
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