Double Shot injection molding which some people call 2K injection molding or two shot injection molding, is the process of molding two or more different plastic materials into one part at one time. One important element of double shot injection molding is the two materials must be compatible with each other and designed to overmold. Otherwise, the product doesn’t hold up during the procedure, sometimes overmolding is also a single type of 2k injection molding, but a lot of the materials that are designed for over molding may not be appropriate for this two-shot process. This is because one material requires a larger amount of cycle time to produce than the other material. Again, compatibility of materials is key.