TPR bottom

TPR material is a thermoplastic rubber material. It is a type of thermoplastic soft rubber material that has rubber elasticity and does not require vulcanization, and can be directly processed and molded (such as injection molding, extrusion, blow molding, etc.)

Appearance characteristics

The color is transparent or naturally white particles; The shape is a particle, usually consisting of spherical particles, ellipsoidal particles, and fine circular strips, with a bright surface and good reflective performance.

Basic characteristics

● Rubber has excellent resilience and wear resistance, as well as excellent slip resistance and shock absorption performance. TPR materials are softer and more comfortable than rubber, but their tensile strength, fatigue resistance, and mechanical properties are not as good as vulcanized rubber.
● The temperature range for use is -45~90 ℃. Generally speaking, TPR materials are based on SBS substrates, and their chemical properties are as follows: weather resistance and aging resistance are average, with a temperature resistance of 70~75 ℃. If a material with good aging and temperature resistance is needed, a modified material of SEBS substrate can be selected.
● The hardness characteristics of TPR materials can be adjusted to a Shore hardness of 5-100 degrees, while modified materials based on SEBS can be adjusted to a lower hardness.
● Processing characteristics, TPR material has good adhesion performance with certain adhesives, inks, etc., and has good oil spray screen printing processing ability.
● Environmental characteristics: TPR material, as an environmentally friendly soft adhesive, mainly contains hazardous substances such as plasticizers such as phthalates, nonylphenol NP, and polycyclic aromatic hydrocarbons (PAHs), which meet the environmental testing standards of ROHS, REACH, EN71-3, and ASTMF963.