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Multi Material Molding
Multi-material or multi-component molding is the injection of two or more different materials into one plastic part to achieve a specific function (e.g. hard/soft combination of PP and TPE, core/skin combination, multi-color design). A multi-material hot runner distributes the different melt streams from two or more injection barrels to the gate locations of each mold cavity. The mold can rotate, shuttle or swivel to bring the cavity into the fill position for each material. Valve gating is the most common gating method for multi-material applications. Mold Hotrunner Solutions® offers Rheo-Pro® hot runner systems for sandwich molded parts and barrier layer molds, in which the core material is injected through the frozen skin layer.
Bottle crate with soft/hard combination |
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Case Studies
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