Is Dongguan two-color injection molding TPR cheap?

In the elastomer industry, TPE usually refers to a composite functional material obtained by modifying SEBS.

The wall thickness of TPE molding positions should be as uniform as possible to achieve the best molding cycle. Transitions between different wall thicknesses should be gradual to reduce fluid flow problems such as gas lines and bubbles.

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

Two-color injection molding TPR

TPE elastomer soft rubber has excellent comprehensive properties. It is the most commonly used soft rubber material for secondary injection molding, overmolding, and two-color injection molding.

TPE is used in overmolding, with TPE soft rubber as the soft rubber outer layer,

To achieve the matte appearance 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 will produce excellent workpiece appearance and make demolding easier. 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.

Transparent TPE is used in appliance housings, handles, grips, etc. It exhibits very good hand feel, non-slip and labor-saving, and is easy to color and process. It also has a wide design space.

Two-color injection molding TPR

Commonly matched rigid materials are mainly plastics, but also metals and fabrics. TPE overmolding with fabric is mainly used in luggage products. Like metal overmolding, it is generally false overmolding. True overmolding is more common in secondary injection molding and two-color injection molding, that is, the main material for TPE overmolding is plastic.

During the molding process of TPE material, during the filling of the mold cavity,

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

TPE high-transparency material has different product properties in different applications. Thermoplastic elastomer is also called TPE material. Transparent TPE not only has the processing properties of thermoplastic plastics, 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.

Two-color injection molding TPR

If the filling performance of the product is poor, there will be too much decompression, too long filling time, unqualified filling, etc., causing product quality problems.