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Why Degumming Cracking Occurs in Liquid Silicone Packaged Plastic Products
Author： Published：2026-06-25 Clicks：
Why degumming and cracking occur in LSR overmolded plastic
Causes: 1) Inadequate surface preparation of plastic, 2) Material incompatibility (PP/PE need special treatment), 3) Thermal stress from CTE mismatch, 4) Mold design issues (sharp corners), 5) Incorrect process parameters. Prevention: proper surface activation, material selection, and process control.
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