APPLICATION SCENARIOS
1. Inside the floor of passenger cars, reducing the transmission of road vibrations
2. In the cab of commercial vehicles, enhancing driving and riding comfort
3. At the bottom of the battery compartment of electric vehicles, buffering vibrations to protect the battery pack
4. At the connection between the vehicle chassis and body, reducing structural noise and vibration
Product Description
High-end silicone foam materials adopt the liquid silicone foaming process, achieving precise density control of 330-370kg/m³, while featuring both EN45545-2 HL3 fire certification and adaptability to extreme temperatures of -55℃~200℃. With a permanent deformation rate <1% and resilience >90%, they meet the extreme performance requirements for lightweight sealing materials in fields such as rail transit and aerospace, with comprehensive indicators reaching the international advanced level.
PRODUCT FUNCTION
Ultra-wide temperature range stability:
Maintains elasticity without cracking at -55℃ low temperature, no hardening during long-term use at 200℃ high temperature, and performance degradation after thermal aging is <5%.
Intrinsic fire safety:
Complies with EN45545-2 HL3 (highest fire protection level for rail vehicles), with smoke toxicity emission 50% lower than the standard limit.
Permanent sealing guarantee:
Compression set <1% (per ISO 1856 test); after 100,000 dynamic compression cycles, the deformation recovery rate is >99%.
Environmental compliance certification:
Meets TB/T 3139 (China's environmental protection standard for rail vehicle materials) and EU REACH regulation.
Lightweight structural advantages:
The ultra-low density of 330kg/m³ reduces equipment load, achieving a 40% weight reduction compared to EPDM materials.
PERFORMANCE INDEX
Density range: 330-370 kg/m³ (±3% tolerance)
Fire rating: EN 45545-2 HL3 (all items R24/R25/R26/R27/R28/R29 compliant)
Temperature range: -55℃~200℃ (continuous service life >10 years)
Mechanical properties:
Compression set <1% (70℃×22h)
Rebound rate ≥90% (ASTM D1054)
Tear strength ≥8 kN/m
Environmental certifications: TB/T 3139, REACH, RoHS 2.0
APPLICATION AREA
Rail transit: Door and window sealing of high-speed rail/metro vehicles, fireproof compartments of electrical and mechanical cabinets
Aerospace: High-temperature sealing of engine compartments, vibration-damping pads for avionics equipment
New energy batteries: Fireproof sealing rings for power battery packs, waterproof grooves of charging piles
Industrial equipment: Door sealing of semiconductor cleanrooms, gaskets for high-temperature reaction kettles
Specialty sealing: Geothermal power pipelines, pressure-resistant sealing for deep-sea exploration equipment