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China Suppliers of Vulcanization Thermoplastic Elastomers (TPE) Factory: EPDM and 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 | ||
Test Conditions: *180℃, 1.2 KG | **200℃, 2.16KG | ***200℃, 5KG
Frequently Asked Questions (FAQ)
What base materials are used for Dynamic Vulcanized TPE?
Dynamic Vulcanized TPE is engineered using either EPDM rubber or silicone rubber as base materials, which are processed via twin-screw extrusion with dynamic vulcanization.
What are the primary applications of EPDM-based TPV?
EPDM-based TPV excels in outdoor and sealing environments. It is widely used for automotive seals, door and window sealing strips, refrigerator seals, profile seals, and self-lubricating automotive glass guide grooves.
Why is Silicone-based TPV preferred for wearable products?
Silicone-based TPV provides a skin-friendly, plush feel and excellent biocompatibility. This makes it ideal for human-wear scenarios, including gas mask seals, PC-coated swimming goggles, electronic wearable devices, phone covers, and belts.
What environmental resistances does Dynamic Vulcanized TPE offer?
This material features exceptional stability, offering high resistance to oxidation, UV radiation, hydrolysis, and chemical corrosion, ensuring durability in harsh conditions.
How does the hardness of these TPE materials vary across grades?
According to the specifications, the hardness varies by grade, ranging from softer grades like 8250V, 9650SV, and 9545SV (45-50A Shore) to harder grades like 8095SV (90-95A Shore), tested under the ASTM D-2240 standard.
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