Designed for the demands of automated manufacturing, this two-part platinum-catalyzed liquid silicone rubber (LSR) is optimized for high-speed injection molding of squishy toys, soft novelty items, and sensory products. It delivers the signature slow-rise, ultra-soft tactility that defines the squishy category, while enabling cycle times that make large-scale production economically viable.
The LSR system features a balanced rheology that promotes rapid mold filling under low injection pressure, reaching every detail of intricate multi-cavity molds. Its fast thermal cure profile allows demolding in seconds at mold temperatures of 120–150°C, dramatically reducing part-to-part time compared to ambient-cure systems. Flash is minimal and parts release cleanly, reducing waste and mold maintenance. The mixed material is supplied in sealed drum kits for direct feed into standard LSR injection molding equipment, requiring no pre-mixing or milling.
Post-cure, the molded parts exhibit a Shore A hardness below 5 (or Shore 00 10–30), with a velvety, non-tacky surface and outstanding elastic recovery. The slow-return behavior is fully retained even after thousands of squeeze cycles, as the material is free from migratory oils or fillers that would degrade over time. This grade meets relevant toy safety standards (including EN 71-3 and ASTM F963) and is produced under strict quality controls that ensure batch-to-batch consistency for color, hardness, and rebound characteristics.
Manufacturers can color the silicone with masterbatch pigments or overmold onto compatible substrates to create hybrid products. Because it is a platinum cure system, there is zero generation of acidic or alcohol by-products that could corrode molds or require lengthy post-baking. For brands producing millions of squishy keychains, phone grips, stress balls, and licensed character toys annually, this injection molding grade offers unmatched productivity without sacrificing the sensory experience that defines the category.
