How is the TPE quotation for auto parts in Anhui?

TPE material is used for overmolding, with TPE soft rubber as the outer covering layer,

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

Since any impurities in TPE material can affect the transparency of the product, attention must be paid to sealing during storage, transportation, and feeding to ensure the TPE raw material is clean. Especially if TPE raw material contains moisture, heating can cause it to deteriorate, so it must be dried. During injection molding, a dry hopper must be used for feeding.

Auto Parts TPE

Commonly used rigid materials for bonding are mainly plastics, as well as metals and fabrics. TPE bonding with fabric is mainly used in luggage products, similar to metal overmolding, generally fake overmolding.

In TPE overmolding (two-shot injection molding), the key point is to ensure good adhesion between TPE and the substrate (PP, ABS, PC, PA, etc.). To achieve good adhesion between TPE and the substrate,

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

Transparent TPE is used in appliance housings, handles, grips, etc. It exhibits excellent touch, is non-slip and labor-saving, and has the characteristics of easy coloring and processing, as well as a wide design space.

Auto Parts TPE

According to the principle of chemical similarity and compatibility, the key is that TPE and the substrate should have similar polarity, so that molecular-level fusion can occur between TPE and the substrate.

Preheating the insert before overmolding helps improve bonding strength,

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

Transparent TPE materials have different product properties when applied in different areas. Thermoplastic elastomer is also called TPE material. Transparent TPE not only has the processing properties of thermoplastics, but also has the physical properties of vulcanized rubber. This is the so-called advantageous combination of plastic and rubber. Transparent TPE is widely used in people's daily life and production.

Auto Parts TPE

Because the preheating process can improve the compatibility between the insert material and TPE. The appropriate temperature of the insert needs to be discussed and determined with the material supplier.