Is Beijing fireproof TPE manufacturer reliable?

TPE overmolding generally uses two-shot injection molding process.

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

Transparent TPE materials have different product properties in different applications. Thermoplastic elastomers, also called TPE materials, not only have the processing properties of thermoplastics but also the physical properties of vulcanized rubber. This is the advantageous combination of plastics and rubber. Transparent TPE is widely used in people's daily life and production.

Fireproof TPE manufacturer

The already injection-molded hard plastic part is fixed on the overmolding mold, and then at a suitable temperature, the TPE soft rubber is injection overmolded onto the hard part, and after cooling, the product is obtained. The overmolding injection temperature depends on the hard material being overmolded.

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

To achieve the matte appearance of thermoset rubber, a rougher mold surface is required. Generally speaking, the rough surface produced after electrical discharge machining (EDM) of the mold cavity will result in an excellent workpiece appearance and make demolding relatively easy. Abrasive 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, specifically thermoplastic elastomer, while TPR is translated from English, strictly speaking called thermoplastic rubber. This is the most basic difference. TPE is generally modified and formed from SEBS base material, while TPR is modified from SBS base material.

Fireproof TPE manufacturer

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

TPE material has good fluidity and is mainly used for injection molding.

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

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 TPE raw material is clean. Especially if the TPE raw material contains moisture, it will cause the material to deteriorate when heated, so it must be dried. During injection molding, a drying hopper must be used for feeding.

Fireproof TPE manufacturer

TPE semi-finished toy products can be used for post-processing such as painting (spray painting, inkjet), screen printing, etc. Our company produces and sells TPE soft rubber materials, which can be used for injection molding to produce soft toys, simulated animal toys, plant toys, fruit toys, etc. The TPR provided has excellent color matching and oil spraying characteristics, is environmentally friendly and non-toxic. Next, let's see what surprises the TPE toy manufacturer brings us.