Proto Labs, Maple Plain, MN, has expanded the company’s rapid injection molding offerings with an overmolding service. The new capability can produce from 25 to 10,000+ custom overmolded parts in 15 days or less. The company says the introduction of rapid overmolding gives designers and developers another option for making high-quality prototype or low-volume production parts as quickly as possible.

Overmolding, which is a multistep process, is used to improve grip and durability, dampen vibration, and to add two-color aesthetics to parts. The overmolding process can also reduce manufacturing costs by simplifying multipart assemblies. The process uses engineering-grade thermoplastics and liquid silicone rubber materials to create overmolded prototypes and end-use production parts.

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