What Is TPR Material?

Abtec has more than 100 years of experience in the design, development, and manufacture of custom injection molds and support tooling. Our manufacturing process, which includes robotics and the latest in process monitoring mechanisms, is efficient and leverages cutting-edge technology. We save you money because our machines are designed for repeatability—this means reduced labor costs and lower reject rates.

thermoplastic rubber (TPR) santoprene

About Thermoplastic Rubber (TPR)

TPR material, also known as thermoplastic rubber, is a material that has properties of both plastic and rubber. It is lightweight and has good abrasion resistance, good tear strength, weather resistance, and electrical properties. TPR performs similarly to vulcanized rubber and is reusable and recyclable. This material is also well suited for injection molding processing.

What are TPR’s Benefits?

The unique properties of TPR give it several advantages over other materials in the injection molding process, which include:

  • TPR material usually has a faster cycle time than thermoset rubber
  • It can be processed on traditional plastic equipment
  • Its customization options mean it can be made in a variety of colors or clear
  • TPR can be co-molded or co-extruded with other types of rigid plastics
  • It can be compounded for a range of physical and chemical properties

thermoplastic rubber (TPR) - button part

Which TPRs Are Available at Abtec?

Abtec carries the brands below:

  • Alcryn® is a true thermoplastic elastomer that is based on a cross-linked interpolymer alloy. It is designed for manufacturing rubber parts that have high productivity on thermoplastic equipment. It is useful in a number of applications that are served by vulcanized rubber, such as:
    • Injection-molded parts
    • Window and door weatherstripping
    • Coated fabrics
    • Blow-molded parts
    • Seals
    • Gaskets
    • Tubing
    • Soft handles and grips
    • Wire and cable jackets
  • Santoprene™ has the flexibility of rubber and is easily processed, like thermoplastics. It can be reprocessed and remanufactured with little difficulty, making it preferable to other types of rubber when a complex elastomer is needed in manufacturing. Its common applications include:
    • Automotive
    • Household appliances
    • Electrical
    • Construction
    • Health Care

thermoplastic rubber (TPR) - rubber grip part

What Is TPR Material Compared to TPE Material?

TPR vs. TPE

TPE, or thermoplastic elastomer, is a polymer that behaves like thermoset rubber. It is very similar to TPR in that both:

  • Have high-flexural fatigue resistance
  • Are resistant to tears and abrasions
  • Have high-impact strength and good dielectric properties
  • Are weather- and chemical-resistant
  • Are recyclable
  • Can be used in temperatures ranging from -30°C to 140°C (-22°F to 284°F)

There are, however, a few differences between TPR and TPE:

  • TPR is modified from a SBS base, which gives its particles a reflective, glossy surface; TPE is modified from a SEBS base and has a matte surface with light astigmatism.
  • TPR emits a thick, dark smoke when burning; TPE emits a thinner smoke when burning.
  • TPR is used in products that need gluing to adhesives or require a glossy surface; TPE’s applications include food and medical products, sealing rings, and closure liners.

Abtec Has the TPR Solution for Your Project

Abtec has more than a century of experience in designing and manufacturing custom injection molds. We often use TPR material in our injection molds because the material, which is similar to vulcanized rubber, is lightweight, reusable, and recyclable.

With our experience, we will provide you with high-quality molds with a short turnaround time. Our cutting-edge equipment is designed for repeatability, which leads to lower labor costs and reject rates—saving you money in return!

If you need custom injection molds for your next project, contact us to request a quote.