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Vulcanization Thermoplastic Elastomers (TPE) Suppliers and Factory in China - EPDM & Silicone Rubber Solutions
Product Introduction
Dynamic Vulcanized TPE Material is engineered using EPDM rubber or silicone rubber as base materials, processed via twin-screw extrusion with dynamic vulcanization. The technology merges the intrinsic properties of base rubber with thermoplastic plasticity, enabling efficient molding while retaining elastic performance. Boasting exceptional stability, it resists oxidation, UV radiation, hydrolysis, and chemical corrosion. EPDM-based TPV excels in outdoor environments, ideal for door/window and automotive seals. Silicone-based TPV, meanwhile, suits human-wear scenarios, applied in gas mask seals, PC-coated swimming goggles, and electronic wearables. Its versatility bridges industrial durability and biocompatibility, making it a reliable choice for diverse sealing and wearable applications.
Typical material properties specifications
| Test property | Test method | Units | 8250V | 8270V | 8095SV | 9650SV | 9545SV | 9585SV |
|---|---|---|---|---|---|---|---|---|
| Hardness Shore | ASTM D-2240 | Shore | 45-50A | 65-70A | 90-95A | 45-50A | 45-50A | 85-90A |
| Melt Flow index | ASTM D-1238* | g/10min | N | N | 1.2*** | 18.8** | 13.3** | 15.2** |
| Specific Gravity | ASTM D-792 | g/cm3 | 1 | 0.89 | 0.89 | 1.03 | 1.09 | 1.13 |
| Color | _________ | - | nature | nature | nature | nature | nature | nature |
| Tensile Strength | ASTM D-412 | kgf/cm2 | 67.2 | 85 | 150 | 59.4 | 65.5 | 100 |
| Break Elongation | ASTM D-412 | % | 550 | 550 | 400 | 450 | 450 | 450 |
| Application | EPDM vulcanized elastomer, used for automotive sealing strips, door and window sealing strips, refrigerator sealing strips | EPDM vulcanized elastomer, used for automotive seals, door and window seals, refrigerator seals, and profile seals | EPDM vulcanized elastomer, self-lubricating, used for automotive glass guide grooves | Silicone elastomer, skin friendly touch, used for encapsulating PP face masks and injection molding encapsulating PP | Silicone elastomer, skin friendly touch, used for encapsulated ABS face masks, encapsulated PC lenses swimming goggles | Silicone elastomer with a skin friendly plush feel, suitable for wearing electronic devices, belts, and phone covers | ||
| 测试条件：*180℃,1.2 KG | **200℃,2.16KG | ***200℃,5KG | ||||||
Frequently Asked Questions
What is the manufacturing technology behind Dynamic Vulcanized TPE?
It is engineered using EPDM rubber or silicone rubber as base materials, which are processed via twin-screw extrusion with dynamic vulcanization to merge the properties of base rubber with thermoplastic plasticity.
What are the main application differences between EPDM-based and Silicone-based TPV?
EPDM-based TPV is ideal for outdoor industrial applications like automotive and door/window seals. Silicone-based TPV is designed for skin-contact and wearable scenarios, such as gas masks, swimming goggles, and electronic wearables.
What environmental factors does this material resist?
The material boasts exceptional stability and is highly resistant to oxidation, UV radiation, hydrolysis, and chemical corrosion.
What standards are used to test the physical properties of these materials?
Key properties are tested using international standards including ASTM D-2240 for hardness, ASTM D-1238 for melt flow index, ASTM D-792 for specific gravity, and ASTM D-412 for tensile strength and break elongation.
How does the hardness range across different product grades?
The hardness ranges from soft options at 45-50A (such as 8250V, 9650SV, and 9545SV) to harder options up to 90-95A (such as 8095SV).
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