Si-TPV 3320-60A | Skin-Friendly Soft-Touch Elastomer for Overmolded Wearables and Handle Grips
describe:
SILIKE Si-TPV 3320-60A is a dynamic vulcanized thermoplastic silicone-based elastomer, produced using advanced compatible technology that ensures the even dispersion of silicone rubber in TPU as 1~3 micron particles under a microscope. This technology effectively addresses the compatibility issues between TPU and silicone. Its performance significantly exceeds that of standard thermoplastic vulcanized rubber (TPV), earning it the designation of super-grade TPV.
Si-TPV 3320-60A materials combine the strength, toughness, and abrasion resistance of thermoplastic elastomers with the desirable properties of silicone, such as softness, a silky feel, UV resistance, and chemical resistance. Additionally, they are recyclable and reusable in traditional manufacturing processes.
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Applications
Si-TPV 3320-60A is an innovative material that offers a unique combination of excellent biocompatibility, low hardness, and outstanding resistance to both high and low temperatures. Its superior overmolding compatibility allows for efficient co-extrusion and two-color injection molding with engineering plastics such as polycarbonate (PC), acrylonitrile-butadiene-styrene (ABS), and polyvinyl chloride (PVC), making it ideal for applications involving frequent skin contact.
It is a reliable solution for achieving soft-touch overmolding in smartphones, portable electronic cases, smartwatch wristbands, wearable devices, straps, handle grips, and industrial components, without compromising comfort, aesthetics, or performance.
Key Benefits
- Soft silky feel
- Excellent Stain-resistant, resistant to dust accumulated
- Without adhesives and hardening oil, no odors
- Easy extrusion molding, gate mark (flash) easy to handle
- Excellent bonding to PC, ABS
- Can do laser marking, screen printing, pad printing, spraying and other secondary Processing
- Hardness range: 55A-90A, high resilience
Characteristics
Compatibility: TPU, TPE, PC, ABS, PVC, etc.
Typical Properties
| Test* | Property | Unit | Result |
| ISO 868 | Hardness (15 seconds) | Shore A | 60 |
| ISO 1183 | Specific Gravity | 1.17 | |
| ISO 1133 | Melt Flow Index 2.16kg & 190℃ | g/10 min | 26. 1 |
| ISO 37 | MOE ( Modulus of elasticity) | MPa | 4.36 |
| ISO 37 | Tensile Strength | MPa | 14.4 |
| ISO 37 | Elongation at break | % | 874 |
| ISO 37 | Tensile strength (100% strain) | MPa | 2.37 |
| ISO 34 | Tear Strength | kN/m | 43. 1 |
| ISO 815 | Compression Set 22 hours @23℃ | % | 23 |
How to use
● Injection Molding Processing Guide
| Drying Time | 2–6 hrs |
| Drying Temperature | 80–100℃ |
| One Zone Temperature | 150–160℃ |
| Two Zone Temperature | 160–170℃ |
| Three Zone Temperature | 170–180℃ |
| Four Zone Temperature | 170-190℃ |
| Nozzle Temperature | 180-–190℃ |
| Melt Temperature | 165℃ |
| Mold Temperature | 20–40℃ |
| Injection Speed | Med |
These process conditions may vary with individual equipment and processes.
Usable Life And Storage
When stored at 32°C (90°F) or in the original unopened container, these products have a useful life of 24 months from the date of manufacture.
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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