A manufacturer of high-end bathroom fixtures was facing persistent quality complaints regarding water leakage from shower head connections. The company's existing sealing solution, based on EPDM rubber gaskets, showed inconsistent performance under varying water pressure and temperature conditions. After repeated thermal cycling, the gaskets lost elasticity, leading to dripping and customer dissatisfaction.
After evaluating the product's design specifications and operating environment, we proposed a customized LSR injection molding solution featuring high-precision sealing rings made from food-grade liquid silicone rubber. LSR was selected for its exceptional compression set resistance. It means the material retains its shape and sealing force even after prolonged compression. Our precision LSR molding process achieved micron-level dimensional control, ensuring drip-free connections even under fluctuating water pressure. The automated production line-maintained lot traceability through serialization embedded in quality management databases. Tooling design incorporated optimized draft angles and vent slot positioning to eliminate cosmetic blemishes and functional flaws.
After switching to LSR seals, the customer reported a 92% reduction in leakage-related warranty claims. The new seals also demonstrated superior resistance to hard water scaling and common household cleaners, extending product lifespan significantly.



