Hunan Rubber TPE Manufacturer Cost Inquiry

TPE uses overmolding injection bonding process,

TPE, TPR overmolding layer thickness. In most overmolding applications, a wall thickness range of 1.5-3.0mm will ensure good adhesion. If the TPE layer is too thin, injection molding is more difficult, adhesion strength is low, and the hand feel is poor. If the TPE layer is too thick, on one hand the cost is higher, on the other hand defects such as shrinkage and bubbles are prone to occur.

Transparent TPE material, due to its high light transmittance, requires strict surface quality of the material product. It must not have any defects such as streaks, pores, whitening, halos, black spots, discoloration, poor gloss, etc. Therefore, throughout the entire injection molding process, strict and even special requirements must be paid attention to regarding TPE raw materials, equipment, molds, and even product design.

Rubber TPE Manufacturer

Common products such as handles, grips, electronic materials, etc. The material gives the product a comfortable touch, improves grip, enhances the product's aesthetics and added value.

With the rapid development of the TPE elastomer industry in recent years,

Diene transparent TPE, diene TPE is mainly an isomer of natural rubber, so it is also called thermoplastic trans-natural rubber. Although its heat resistance and mechanical strength are not as good as rubber, due to its good transparency, weather resistance, electrical insulation, and photodegradability, it is widely used in shoemaking, sponges, optical films, and other industrial rubber products.

To achieve the matte appearance of thermoset rubber surfaces, a rougher mold surface is required. Generally speaking, the rough surface produced after electrical discharge machining (EDM) of the mold cavity will produce an excellent workpiece appearance and make demolding relatively easy. Abrasive methods such as steam blasting, sandblasting, or shot peening, as well as chemical etching, can also be used to produce surfaces with different gloss and appearance.

Rubber TPE Manufacturer

The application of TPE overmolding secondary injection molding is becoming more mature. Many hard plastic products, after introducing elastomer TPE soft material, have improved the touch, grip, aesthetics and other functional characteristics of the product.

The overmolding temperature is generally controlled at 30-50°C, but for some TPE grades with strong crystallinity,

Transparent TPE is used in stationery, sports equipment, etc. It has good UV resistance, chemical resistance, and is easy to color and process.

The wall thickness of the TPE layer should be as uniform as possible to achieve the best molding cycle. The transition between different wall thicknesses should be gradual to reduce problems caused by fluid flow, such as gas marks and bubbles.

Rubber TPE Manufacturer

You can appropriately increase the mold temperature to 70°C, which is beneficial for bonding and at the same time can obtain a more glossy overmolded surface.