As mentioned above, these processes are relatively simple to understand. However, it is highly difficult to master. It requires high levels of technical expertise and attention to detail. When dealing with high-volume production scenarios, the smallest mistake can be costly. This is why it is critical to find a highly capable molding manufacturer. Once you find one, you need to involve them early on in the design phase of your part, as they can engineer value and quality into any problem areas. If you have questions or concerns regarding your part or the double shot or overmold processes, contact our experts at Midstate Mold today!

If you are overmolding a metal part with plastic, you can really use any type of plastic. If you are overmolding a plastic part with another plastic, then there can be some compatibility issues. Your experienced molder will be able to recommend the best materials suitable for your project

We started business in 1910 and have been actively engaged in plastic injection molding and tooling for more than 60 years.

Overmolding is a process of adding an additional layer of material over an already existing piece or part. This process is regularly used to manufacture parts, sub-sections of parts, and for prototype development. Typically, the substrate material (the first piece in what will be bonded and mechanically interlocked with other materials) is placed into an injection molding tool, at which point the overmold material is shot into or around the substrate. When the overmold materials solidify, the two materials become joined together as a single part.

Double shot molding is an ideal process for complex, multi-material, and multi-colored plastic products; specifically in high-volume production scenarios. Other advantages include:

In either case, we are fully capable of quickly assessing whether this mold will fit our equipment, and performing any necessary modifications, which are normally minor.

Overmolding can be added to change the surface of a piece or product by adding texture, color, and incorporating necessary functionality components. Other advantages include:

There are a variety of manufacturing methods used to create plastic molded products. Two methods mentioned in this article, double shot molding and overmolding, are viable manufacturing processes that offer several advantages for many plastic manufacturers. Both processes can be difficult to master since they require adherence to the very tightest of tolerances. Below, we discuss the differences and advantages between double shot molding and overmolding.

What is a "short run"? Typically, it is a low volume order quantity. Many molders wouldn't even consider this type of business—they are more interested in churning out millions of parts. Klann Plastics, however, is a short run expert, and we have offered this level of service for many years. We have learned how to produce small orders efficiently and cost-effectively, using either your existing molds or, if needed, with new molds. If you have a project that requires a prototype or production mold, along with part volumes in the hundreds or thousands, contact us. We'll find a way to work with you.

This takes place more often than you might think, and occurs in one of two ways. First, we have several large customers who are also very large plastic injection molders of their own proprietary parts. They are very quality conscious, so we are honored when they trust us with their molds to run production parts for them—at times, up to 20 molds at one time. Second, a customer becomes displeased with his current vendor's performance, which usually is a product quality or on-time delivery issue, and investigates other sources. Klann has often been the beneficiary of this type of situation.

Double shot molding, sometimes referred to as two-shot molding, is a manufacturing process used to produce complicated molded parts from two different materials by molding plastic around a preformed metal or plastic insert. The process is relatively simple; one material is injected into a mold in order to make the initial piece of the product, followed by a second injection of another material that is compatible with the initial injection molded piece. The two plastic resins then form a molecular bond and the multi-resin molded part is cooled and ejected.

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