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Our Advantage
Standard silicone works continuously up to about 200 °C. For continuous service above that temperature, specialized high-temperature grades are required. The most important long-term performance factor is compression set at elevated temperature — a gasket that seals well initially can lose sealing force after thermal cycles if compression set is too high. When specifying, clearly state continuous vs peak temperature, required compression set, and whether the joint sees thermal cycling. Fluorosilicone should be considered if oils or fuels are also present. Choose a manufacturer that can provide real high-temperature compression-set data to avoid premature field failures.
Choose between LSR injection and compression molding based on volume, geometry, and budget. Compression molding offers lower tooling cost ($1.5k–8k), slower cycles (3–8 min), and moderate tolerances (±0.15–0.50 mm), making it ideal for simple parts, fast T0 samples, and volumes under 50,000 pcs/year. LSR injection has higher tooling cost ($8k–30k+), much faster cycles (30–90 sec), and tighter tolerances (±0.05–0.15 mm), suiting complex or thin-wall parts, medical/FDA needs, and volumes above 50,000–100,000 pcs/year. Many OEMs start with compression for prototypes, freeze the design, then switch to LSR for mass production.
