Liquid Silicone Rubber (LSR) Tooling: Why Initial Investment Pays Off in Precision
Problem Statement
High-cycle manufacturing of precision components, such as EV battery seals and AI server gaskets, demands materials with exceptional dimensional stability and chemical resistance. Traditional elastomers like EPDM and NBR often fail under extreme thermal cycling and aggressive chemical exposure, leading to premature component failure.
Material Science Analysis
LSR outperforms traditional elastomers due to its unique molecular structure. The silicone backbone provides superior thermal stability, while the crosslinking process ensures low compression set and excellent chemical resistance. Unlike EPDM or NBR, LSR maintains its properties across a wide temperature range (-50°C to 200°C) and resists degradation from oils, fuels, and acids.
Technical Specs
- Shore A Hardness: 30-80
- Tensile Strength: 8-12 MPa
- Elongation at Break: 400-700%
- Temperature Range: -50°C to 200°C
- Compression Set: <10% (22 hours at 150°C)
Technical Comparison
| Material | Temperature Range (°C) | Compression Set (%) | Chemical Resistance |
|---|---|---|---|
| LSR | -50 to 200 | <10 | Excellent |
| EPDM | -40 to 120 | 20-30 | Good |
| NBR | -30 to 100 | 25-35 | Moderate |
Standard Compliance
RubberQ’s LSR tooling process adheres to IATF 16949 standards, ensuring batch-to-batch consistency. Our materials meet ASTM D2000 specifications for elastomer performance and ISO 3601 for dimensional tolerances in sealing applications.
For custom material compound development or IATF 16949 documentation, consult RubberQ’s engineering department.
技術アップデートを購読
材料知見とエンジニアリング事例をメールで受け取れます。
関連記事
2026年4月05日
High-Tonnage Vulcanization: Managing Large-Scale Industrial Rubber Components.
High-Tonnage Vulcanization: Managing Large-Scale Industrial Rubber Components Problem Statement Large-scale industrial rubber components, such as conveyor belts and hydraulic seals, face premature failure under high-tonnage vulcanization. Common issues include chemical degradation at temperatures exceeding 200°C and compression set failure during high-pressure cycles. Material Science Analysis Standard EPDM polymers fail under extreme heat due to their […]
記事を読む2026年4月05日
Commercial Aircraft Interiors: Meeting Smoke and Toxicity Standards (FST).
Commercial Aircraft Interiors: Meeting Smoke and Toxicity Standards (FST) Problem Statement Polymer components in aircraft interiors must pass FAR 25.853 flammability tests while maintaining mechanical performance. Standard EPDM fails at 180°C with toxic smoke emission (HCN >100 ppm). Material Science Analysis Chloroprene rubber (CR) releases HCl gas during combustion. Fluorosilicone (FVMQ) provides superior thermal stability […]
記事を読む2026年4月04日
Carbon Black Fillers: How Particle Size Impacts Reinforcement and Conductivity.
Carbon Black Fillers: How Particle Size Impacts Reinforcement and Conductivity Problem Statement Carbon black fillers in rubber compounds face challenges in balancing reinforcement, conductivity, and aging resistance. Smaller particle sizes improve reinforcement but reduce conductivity. Larger particles enhance conductivity but compromise tensile strength and abrasion resistance. Material Science Analysis Carbon black’s reinforcing properties depend on […]
記事を読む