Best black TPR manufacturers in Jiangxi

TPE overmolding and injection bonding generally uses a two-shot injection molding process,

Because TPE transparent materials require high light transmittance, the surface quality of the material products must be strictly controlled, without any defects such as streaks, air bubbles, whitening, haze, black spots, discoloration, poor gloss, etc. Therefore, throughout the injection molding process, strict and even special requirements must be paid attention to for TPE raw materials, equipment, molds, and even product design.

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

Black TPR manufacturer

Fix the already injection-molded hard plastic part onto the overmolding mold, then at an appropriate temperature, inject and bond the soft TPE onto the hard part, and cool to obtain the product. The injection temperature for overmolding bonding varies depending on the hard material being overmolded.

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

Transparent TPE is used in appliance housings, handles, grips, etc. It offers excellent tactile feel, anti-slip and labor-saving properties, and is easy to color and process. It also provides a wide design space.

To prevent contamination of TPE raw materials and accumulation of old materials or impurities in the screw and attachment recesses, especially those with poor thermal stability, all parts should be cleaned with screw cleaning agent before use and after shutdown to ensure no impurities adhere.

Black TPR manufacturer

According to the chemical principle of 'like dissolves like', the key is that TPE and the substrate should have similar polarity, allowing molecular-level fusion between TPE and the substrate.

When using a standard injection molding machine for two-shot overmolding on nylon, it is recommended before overmolding,

Transparent TPE is used in appliance housings, handles, grips, etc. It offers excellent tactile feel, anti-slip and labor-saving properties, and is easy to color and process. It also provides a wide design space.

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

Black TPR manufacturer

First, preheat and bake the nylon part, because nylon has strong water absorption, and overmolding requires high molding temperature; preheating before overmolding can remove moisture, facilitating rapid hot overmolding.