This addition-cure liquid silicone rubber (LSR) is specifically formulated for high-volume injection molding operations that demand short cycle times, excellent flow, and flawless part consistency. It is a fully compounded, two-part platinum-catalyzed system supplied in matched kits or drums for direct feed into standard LSR injection molding machines.
The material's low mixed viscosity and thixotropic profile enable rapid filling of multi-cavity molds, including those with thin walls and micro-features. Its fast-heat-cure behavior allows demolding within seconds at typical mold temperatures of 140–190°C, dramatically increasing production throughput compared to compression-molded high-consistency rubber. Flash control is excellent, and the cured parts release cleanly from uncoated mold surfaces, reducing cycle interruptions and mold maintenance costs.
Mechanically, this LSR delivers a balanced combination of high tensile strength, excellent elongation (typically 400–700%), and outstanding tear resistance, ensuring that parts withstand repeated use in consumer, automotive, and industrial applications. The material is available in hardness grades ranging from Shore A 20 to 60, covering soft-touch overmolding for grips and handles, durable seals and gaskets, baby bottle nipples, and resilient keyboard membranes. It can be easily colored with masterbatch pigments and overmolded onto engineering thermoplastics with proper surface treatment.
Crucially, the platinum cure chemistry imparts intrinsic purity and compatibility with food-contact and medical regulations (FDA, LFGB, USP Class VI). Parts produced with this LSR exhibit no post-cure blooming, no peroxide residues, and minimal volatile content, meeting strict OEM standards for automotive interior emissions and medical device extractables. Because the material is ready-to-use with no solvent blending or milling required, it integrates seamlessly into lean manufacturing environments. For manufacturers scaling from prototype to full production, this injection molding grade provides the reliability, speed, and regulatory coverage necessary to compete in global markets.
