TPE overmolding secondary injection molding, generally use TPE soft touch, production and processing such as handles, grips, sports equipment, tool handles, etc. TPE overmolding part of the general thickness of the thinner, and many times TPE overmolding of the hard rubber parts of the structure is more complex, in order to achieve a relatively good effect of the second injection molding, we must pay attention to some of the molding parameters of the conditions, then TPE overmolding secondary injection molding processing need to pay attention to What parameters need to pay attention to the secondary injection molding process of TPE overmolding? The following face plastic Bur to organize:

　　1, the compatibility of TPE and hard glue components need to be matched, the molecular solubility is close to the molecular compatibility is better.

　　2, in the design should try to avoid sharp corners, to ensure that the TPE and hard rubber contact excellent, enhance the bonding effect.

　　3, through the appropriate exhaust to avoid leaving gas in the mold cavity.

　　4, so that the thickness of the TPE and the expected sense of touch to achieve a balance.

　　5、Maintain the temperature of TPE melt to ensure the bonding effect.

　　6, TPE material overlay molding need to be baked and then processed, in order to reduce the product surface water lines, to obtain the effect of uniform surface color.

　　7, choose the color masterbatch and its carrier resin and TPE and structural components are compatible with the material.

　　8, for the smooth surface should be special treatment, the purpose is to increase the soft glue and hard glue adhesive contact surface, strengthen the bonding effect;.

　　9, TPE should have good fluidity, because the TPE adhesive layer thickness and size ratio is very small, TPE usually need to flow through a longer path and thin-walled area to fill the mold.

　　10, the flow length of TPE / product thickness ratio of less than 150:1.

　　11, the use of good adhesive.

　　TPE overmolded material with human skin close to the soft and comfortable touch, which is exactly the TPE used in overmolding the key point. By adjusting and optimizing the parameters of the process conditions in the overmolding process, we believe that there will be more and more functional products made of TPE to enhance and decorate our lives.