Domestic Ultra Low Hardness Medical-Grade LSR Completes Mass Production, Breaking Long-Term Import Monopoly

Keywords: medical Liquid silicone rubber, 0-degree ultra-soft LSR, implant-grade silicone, biocompatible liquid silicone, domestic substitution of medical silicone

Key Sentence: Domestic silicone giant Hesheng Silicon’s newly developed zero-hardness medical liquid silicone finished full mass production verification, filling the domestic blank of ultra-soft implant silicone materials.

On July 19, 2026, Hesheng Silicon officially announced that its self-developed 0-degree ultra-soft addition liquid silicone rubber has passed full-scale production test and obtained complete NMPA medical material certification. The LSR material features ultra-low modulus, high resilience and excellent long-term human biocompatibility, perfectly matching minimally invasive medical catheters, wearable health sensors and human simulation prosthetic manufacturing demands.Previously, this ultra-low hardness medical liquid silicone relied entirely on imported Wacker and Dow brands, with high procurement costs and long delivery cycles. The domestic upgraded formula realizes equivalent performance while cutting raw material costs by nearly 30%, and fully complies with EU REACH zero-D4 environmental limits.

Medical device manufacturers have launched batch sample testing, and preliminary long-term supply framework agreements have been signed with multiple domestic and overseas medical enterprises. Industry analysts predict medical-grade liquid silicone will maintain a 16% annual growth rate in the next two years, and certified domestic LSR products will continuously seize global high-end medical material market share.