Si-TPV 3420-90A Premium Tactile Recyclable Elastomer for Abrasion Resistance in Electronics & Industrial Applications
describe:
SILIKE Si-TPV 3420-90A thermoplastic elastomer is a dynamic vulcanized thermoplastic silicone-based elastomer which made by a special compatible technology to help silicone rubber dispersed in TPU evenly as a 2~3 micron particles under microscope. Those unique materials combine the strength, toughness and abrasion resistance of any thermoplastic elastomer with desirable properties of silicone: softness, silky feel, UV light and chemicals resistance which can be recycled and reused in traditional manufacturing processes.
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Applications
Si-TPV 3420-90A is a high-performance premium tactile recyclable thermoplastic elastomer designed to meet the demanding needs of applications requiring superior abrasion resistance. With excellent bonding to polycarbonate (PC), acrylonitrile butadiene styrene (ABS), thermoplastic polyurethane (TPU), and similar polar substrates, this material excels in silky-touch overmolding and injection molding.
Ideal for a range of consumer electronics applications, the Si-TPV3420-90A is perfect for wearable electronics, phone cases, and accessory cases for electronic devices. The elastomer’s blend of durability and tactile comfort makes it an optimal solution for creating premium-feel components that withstand frequent use, providing long-lasting performance and enhanced user experience.
Whether for key caps, furniture, rollers, 3D printing, phone cases, or high-performance electronics accessories, Si-TPV 3420-90A delivers the perfect combination of durability, comfort, and premium aesthetics to meet the needs of the modern consumer electronics and consumer electronics and industrial applications market
Key Benefits
- Soft silky feel
- Good scratch resistance
- Excellent bonding to PC, ABS
- Superhydrophobic
- Stain resistance
- UV stable
Characteristics
- Compatibility: TPU, PC, PMMA, PA
Typical Properties
| Test* | Property | Unit | Result |
| ISO 868 | Hardness (15 seconds) | Shore A | 88 |
| ISO 1183 | Specific Gravity | 1.21 | |
| ISO 1133 | Melt Flow Index 10 kg & 190℃ | g/10 min | 7.6 |
| ISO 37 | MOE ( Modulus of elasticity) | MPa | 17.2 |
| ISO 37 | Tensile Strength | MPa | 24 |
| ISO 37 | Tensile Stress @ 100% Elongation | MPa | 8.4 |
| ISO 37 | Elongation at break | % | 485 |
| ISO 34 | Tear Strength | kN/m | 103 |
| ISO 815 | Compression Set 22 hours @23℃ | % | 32 |
*ISO: International Standardization Organization
ASTM: American Society for Testing and Materials
How to use
● Injection Molding Processing Guide
| Drying Time | 2-6 hrs |
| Drying Temperature | 80-100℃ |
| Feed Zone Temperature | 170-190℃ |
| Center Zone Temperature | 180-200℃ |
| Front Zone Temperature | 190-200℃ |
| Nozzle Temperature | 190-200℃ |
| Melt Temperature | 200℃ |
| Mold Temperature | 30-50℃ |
| Injection Speed | FAST |
These process conditions may vary with individual equipment and processes.
● Secondary Processing
As a thermoplastic material, Si-TPV material can be secondary processed for ordinary products
● Injection Molding Pressure
The holding pressure largely depends on the geometry, thickness and gate location of the product. The holding pressure should be set to a low value at first, and then slowly increase until no related defects are seen in the injection molded product. Due to the elastic properties of the material, excessive holding pressure may cause serious deformation of the gate part of the product.
● Back pressure
It is recommended that the back pressure when the screw is retracted should be 0.7-1.4Mpa, which will not only ensure the uniformity of melt melting, but also ensure that the material is not severely degraded by shear. The recommended screw speed of Si-TPV is 100-150rpm to ensure the complete melting and plasticization of the material without material degradation caused by shear heating.
Handling Precautions
A desiccant dehumidifying dryer is recommended for all drying.
Product safety information required for safe use is not included in this document. Before handling, read product and safety data sheets and container labels for safe use physical and health hazard information. The safety data sheet is available on the silike company website at siliketech.com, or from distributor, or by calling Silike customer service.
Usable Life And Storage
Transport as non-hazardous chemical.Store in a cool, well ventilated place. Original characteristics remain intact for 24 months from the production date, if kept in recommend storage.
Packaging Information
25KG / bag, craft paper bag with PE inner bag.
Limitations
This product is neither tested nor represented as suitable for medical or pharmaceutical uses.
Limited Warranty Information – Please Read Carefully
The information contained herein is offered in good faith and is believed to be accurate. However, because conditions and methods of use of our products are beyond our control, this information should not be used in substitution for customer’s tests to ensure that our products are safe, effective, and fully satisfactory for the intended end use. Suggestions of use shall not be taken as inducements to infringe any patent.
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