TPE, TPR is an environmentally friendly non-toxic elastomer material, mainly based on SEBS, SBS blended with the original base material and filler. The material has a wide range of hardness (0-100A), a specific gravity of 0.85 to 1.20, and a temperature resistance of -40 to 100°C. TPR material has soft and smooth touch, good weather resistance, aging resistance, tensile strength, good abrasion resistance and good elasticity. It can be molded with hard plastics (PP, PA, PC, ABS, PS), or it can be molded separately.
TPR is better than TPE elasticity. Most TPRs are based on SBS substrates and TPEs are based on SEBS. In general grade materials, TPR is less expensive than TPE.