Understanding Setup, Color-Change, and Scrap Costs in Double Shot Molding

Double shot molding can create additional planning and production costs related to mold setup, material or color changes, and rejected parts. However, the available product information does not list separate charges for these items or provide a defined scrap percentage. Confirmed cost factors include the two-color injection design, material compatibility, precision alignment, optional cavity configuration, mold steel, inspection procedures, maintenance, and the selected production arrangement.

What the Available Information Confirms

• The custom double shot mold supports hard-and-soft material combinations, including ABS with TPU and PP with TPE.
• Setup work and color-change effects should be reviewed during the engineering stage because no individual setup or changeover fees are stated.
• Scrap risk should be evaluated through mold trials, dimensional checks, sample approval, and pre-shipment inspection; a specific scrap rate is not provided.
• The mold can be used for consumer electronics housings and home appliance components. The listed minimum order quantity is one set, with Europe, America, and Australia identified as export markets.

How Mold Design Influences Cost

A double shot mold uses a two-color injection structure to combine compatible hard and soft materials. The listed combinations include ABS plus TPU and PP plus TPE. High-precision alignment is required to ensure that the two materials meet correctly, while a multi-cavity design can be selected when production volume justifies it. These choices may influence tooling preparation, machine setup, cycle planning, and production efficiency, although the supplied data does not assign a separate price to each item.

The specified mold steel is 718H / 1.2738, and the expected service life is up to 800,000 shots. The stated delivery period is 25–40 days. Quality checkpoints include mold trial runs, dimensional testing, and inspection before shipment. These controls help identify alignment, dimensional, or sample issues before delivery, but they should not be interpreted as a stated scrap guarantee because no scrap percentage or scrap-cost policy is included.

Experience and Quality Support

Longterm Mold has experience in double shot and overmolding applications. In one reported project, a French product brand received eight double shot molds for a consumer electronics shell. The reported trial results showed good alignment and stable samples. The company also lists high-precision custom molds, double shot molds, and overmolding as part of its manufacturing capabilities.

Longterm holds ISO 9001:2015 certification covering the design, manufacture, and sale of precision molds, as well as the sale of plastic products. The certification scope references global, EU, USA, Australia, Italy, and France markets.

Cost Factors to Clarify Before Ordering

Frequently Asked Questions

Are setup charges confirmed for this double shot mold?

No separate setup fee is listed. The design does require two-color injection, accurate alignment, and potentially multiple cavities, but the quotation should explain how engineering, machine preparation, and trial work are charged.

Does the quotation include color-change costs?

The supplied data does not confirm this. It identifies material pairings and the two-color process, but it does not state the number of color changes, changeover duration, cleaning requirements, or additional fees.

What is the best way to assess scrap exposure?

Review the mold trial process, dimensional acceptance criteria, sample approval procedure, and pre-shipment inspection scope. The project quotation should also state responsibility for trial scrap and production rejects because no scrap rate or cost policy is provided.

Conclusion and Purchasing Recommendations

Setup, color changes, and scrap can affect the total cost of a double shot molding project, but the supplied product data does not establish them as separate hidden charges. Before placing an order, request a written quotation that clearly identifies the mold structure, material combination, cavity count, trial requirements, inspection responsibilities, sample approval terms, and any production-related fees. Longterm provides OEM custom injection molds, custom mold making with injection molding, precision double shot and overmolding, and mold development followed by mass production. For technical consultation or project support, contact rogerluo@longterm-mold.com.

About Longterm Mold

Longterm Manufacturing Solutions Limited, operating under the Longterm Mold brand, was founded in 2010. The company provides mold design, tooling, precision machining, mold manufacturing, and parts production for international customers. Its company profile lists 50 employees, annual production of approximately 180 molds, and more than 120,000 precision-machined components. North America, Europe, and Australia are its primary markets, with injection molds, rapid prototyping, precision parts, and automated production solutions among its main offerings. The company has served customers across several industries and holds ISO 9001:2015 certification.