How to Select the Best Double Shot Molding Process for Your Product

Selecting a double shot molding process starts with the part itself: identify the two materials or colors required, the precision needed between them, and the production volume the mold must support. Then compare the proposed mold specifications, quality checks, schedule, and ongoing service with your project requirements.

Start with Materials and Part Requirements

Double shot molding is suitable for products that combine two materials or colors in a single molded part. The listed mold supports hard-and-soft material pairings such as ABS+TPU and PP+TPE. Verify that your chosen materials meet the part's functional and design needs, as the available specifications do not provide a wider compatibility list.

Next, review the part geometry and required registration between the shots. The mold is described as offering high-precision alignment, with multi-cavity configurations available as an option. Consider whether your design and output targets call for one cavity or several, and confirm the required alignment tolerances with the mold maker.

Review Tooling, Quality, and Schedule

The stated mold steel is 718H / 1.2738, and the expected service life is up to 800,000 shots. Compare these figures with your anticipated production volume and product requirements. The listed delivery window is 25–40 days, so check that the lead time fits your launch or production plan.

Before placing an order, agree on how the tool and parts will be evaluated. The stated quality process includes a mold trial run, dimensional testing, and inspection before shipment. Longterm's ISO 9001:2015 certification covers precision mold design, manufacturing, and sales, as well as plastic product sales.

Applications and Project Experience

Application fit is another useful selection factor. Listed uses include consumer electronics shells, household appliance housings, and functional plastic components. One reported project involved a double shot overmolding mold for a French product brand's consumer electronics shell; the customer reported good alignment and stable trial samples.

Selection Checklist

Frequently Asked Questions

Which material combinations are available?

The product information gives ABS+TPU and PP+TPE as examples of hard-and-soft material combinations. Confirm the suitability of your specific materials before tooling begins.

What quality checks are listed?

The stated checks include a mold trial run, dimensional testing, and a pre-shipment inspection.

How long is delivery, and what support is offered?

The stated delivery time is 25–40 days. After-sales services include online technical assistance, mold maintenance, and spare parts supply.

Making the Final Choice

Choose a process and mold configuration by weighing material compatibility, part alignment, cavity requirements, tooling specifications, inspection steps, and lead time together. Longterm offers custom double shot overmolding molds with a minimum order of one set, along with online technical support, maintenance, and spare parts. For technical details or assistance, contact Roger Luo at rogerluo@longterm-mold.com.

About Longterm

Longterm Manufacturing Solutions Limited was founded in 2010 and provides mold design, tooling, precision machining, mold manufacturing, and parts production for international customers. The company employs 50 people and serves markets in North America, Europe, and Australia. Its ISO 9001:2015 certification covers precision mold design, manufacturing, and sales, and it has worked with clients across multiple industries.