Advantages of Guangzhou Thermoplastic TPR Materials

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

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

Since any impurity in TPE material may affect the transparency of the product, it is necessary to pay attention to sealing during storage, transportation, and feeding to ensure the cleanliness of TPE raw materials. Especially if TPE raw materials contain moisture, heating will cause deterioration, so they must be dried. During injection molding, a dry hopper must be used for feeding.

Thermoplastic TPR material

The common rigid materials used for bonding are mainly plastics, as well as metals and fabrics. TPE overmolding with fabric is mainly used for luggage and bag products, similar to metal overmolding, generally being false overmolding.

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

Transparent TPE, specifically thermoplastic elastomer, while TPR is translated from English and strictly called thermoplastic rubber, which is the basic difference. TPE is generally modified and shaped from SEBS base material, while TPR is modified from SBS base material.

Transparent grade includes transparent and translucent series, each with various hardness levels; excellent transparency; smooth and soft surface; good anti-yellowing performance, tear resistance, and tensile strength; environmentally friendly; suitable for various transparent series products.

Thermoplastic TPR material

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

Preheating the insert before overmolding helps to improve bonding strength,

Transparent TPE is used in stationery, sports equipment, etc., and has good UV resistance, chemical resistance, and easy coloring and processing properties.

Styrenic transparent TPE is widely used in the footwear industry, largely replacing rubber; at the same time, its use in industrial rubber products such as adhesive tapes and rubber sheets is also expanding.

Thermoplastic TPR material

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