Double Injection Mold , also known as two material molding, 2 shot molding or 2K molding, is a manufacturing process used to produce complicated molded parts from two different materials. Two kinds of plastic materials are injected on the same injection machine, and they are formed twice, but the product is only molded out at once. This injection molding is usually completed by one mold and requires a special two-color injection molding machine. Double injection mold is becoming more and more popular in the market. This process can make the a nice appearance of the product, easy to change the color without spraying. But it needs good technical requirements, and the cost is high. The major advantages of the double injection mold are as follows: 1. Molded product has high precision and stable quality. 2. Structural strength and durability are good. 3. Small gap and good appearance. 4. It helps to reduce handling and secondary assembly.