Are Beijing TPE material manufacturers reliable?

TPE overmolding generally uses two-shot injection molding process,

The wall thickness of the TPE rubber part should be as uniform as possible to achieve the best molding cycle. The transition between different wall thicknesses should be gradual to reduce fluid flow problems such as gas marks 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.

TPE material manufacturer

The pre-molded (injection molded) rigid plastic part is fixed in the overmolding mold, then at the appropriate temperature, TPE soft rubber is injection overmolded onto the rigid part, and after cooling, the product is obtained. The injection temperature for overmolding depends on the rigid material being overmolded.

PP overmolding is a plastic with very weak polarity, very close to the polarity of TPE based on SEBS.

Transparent grades are divided into transparent and translucent series, each with multiple hardness levels; excellent transparency; smooth and soft surface; good yellowing resistance, tear resistance, tensile strength; meets environmental requirements; suitable for various transparent series products.

Because TPE transparent material requires high light transmittance, strict surface quality requirements are necessary for the material product. There should be no defects such as streaks, pores, whitening, haze, black spots, discoloration, poor gloss, etc. Therefore, throughout the entire injection molding process, great attention and strict or even special requirements must be placed on TPE raw materials, equipment, molds, and even product design.

TPE material manufacturer

Therefore, for PP overmolding, the most conventional TPE formulation can be directly used without adding additional polar modifiers.

TPE as a raw material. TPE material manufacturers are environmentally friendly, non-toxic, have good elasticity, and smooth surface. In addition,

Because any trace of 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 the TPE raw material contains moisture, heating will cause the raw material to deteriorate, so it must be dried. During injection molding, a drying hopper must be used for feeding.

Transparent grades are divided into transparent and translucent series, each with multiple hardness levels; excellent transparency; smooth and soft surface; good yellowing resistance, tear resistance, tensile strength; meets environmental requirements; suitable for various transparent series products.

TPE material manufacturer

The surface is not easy to attract dust, has good thermal conductivity, excellent anti-fouling performance. Through skin safety and non-sensitization tests, it meets the characteristics that silicone cannot meet, making the appearance more high-end and refined. TPE is positioned as the preferred high-end raw material in the industry.