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

What Should You Know About Double Shot Molding Costs?

Double shot molding can involve expenses related to tooling setup, material or color changes, and production scrap. However, the available product information does not list separate charges for these items or provide a defined scrap percentage. The confirmed cost considerations include the two-color injection process, material compatibility, precision alignment, optional cavity configurations, mold steel, inspection procedures, maintenance, and the selected manufacturing model.

Key Cost Factors to Review

• Custom double shot overmolding supports combinations of rigid and flexible materials, including ABS with TPU and PP with TPE.
• Setup work and color-change requirements should be reviewed during the technical quotation stage because no individual processing fees or rates are stated.
• Scrap risk can be examined through mold trials, dimensional verification, pre-shipment inspection, and sample approval, although no scrap rate is supplied.
• The tooling is suitable for consumer electronics housings and household appliance components. The stated minimum order quantity is one set, with Europe, America, and Australia identified as export markets.

Tooling Structure and Production Considerations

The mold is configured for two-color injection and can accommodate hard-soft material combinations such as ABS and TPU or PP and TPE. High-accuracy alignment is part of the stated specification, while a multi-cavity design is available as an option. These decisions may influence setup time, machine planning, and the overall quotation, but the supplied information does not assign a separate price to each configuration.

The specified mold material is 718H / 1.2738 steel, with a service life of up to 800,000 shots. The listed lead time is 25–40 days. Quality assurance includes mold testing, dimensional inspection, and pre-shipment checks. These stages help identify trial or dimensional problems before delivery, but they do not establish a specific scrap allowance or scrap-cost formula.

Relevant Experience and Quality Credentials

Longterm Mold reports experience in double shot and overmolding applications. In one consumer electronics shell project, a French product brand received eight double shot molds, with reported results including accurate alignment and stable trial samples. The company also identifies high-precision custom molds, double shot tooling, and overmolding as key service areas.

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

Double Shot Molding Cost Review

Frequently Asked Questions

Are setup charges confirmed for this double shot mold?

No separate setup fee is shown in the product information. The tooling requires a two-color injection arrangement, accurate alignment, and potentially multiple cavities, so the commercial treatment of setup work should be confirmed for the final design.

Does the quotation include color-change costs?

The data lists material combinations and a two-color process, but it does not state how often colors may be changed or whether cleaning, purging, downtime, or additional changeover fees apply. These details should be requested before approval.

How should potential scrap costs be assessed?

Review the mold-trial procedure, dimensional acceptance limits, inspection scope, and sample-approval requirements. Because no scrap percentage or cost-sharing policy is supplied, the customer should request written clarification for the specific project.

Practical Quotation Recommendations

Double shot molding can create project-specific cost exposure through setup requirements, color or material changes, and rejected parts, but the supplied information does not confirm these as hidden or separately billed charges. A complete quotation should identify the mold structure, material pairs, cavity count, trial plan, inspection responsibilities, sample-approval criteria, maintenance terms, and any production-related costs.

Longterm provides OEM custom injection molds, custom mold development with injection molding, high-precision double shot and overmolding, and mold development services linked to mass production. For technical consultation or project support, contact rogerluo@longterm-mold.com.

About Longterm Manufacturing Solutions

Longterm Manufacturing Solutions Limited, operating under the Longterm Mold brand, was established in 2010. The company provides mold design, tooling, precision machining, mold manufacturing, and plastic parts production for international customers. Its company profile states that it has 50 employees and produces about 180 molds and more than 120,000 precision-machined components each year. North America, Europe, and Australia are listed as its primary markets, while its main products include injection molds, rapid prototyping and precision parts, and automated production solutions. The company serves customers in several industries and lists ISO 9001:2015 certification among its credentials.