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TPE ST-90A
PRODUCT DETAILS
TPE ST-90A Material Data
TPE ST-90A is a thermoplastic elastomer with excellent elasticity, flexibility, and processing stability. It provides high elongation, reliable tear resistance, and balanced mechanical performance, making it ideal for applications requiring a soft-touch feel combined with durability.
- Specific Gravity: 0.90 g/cm³
- Melt Flow Index (200 ℃ / 2.16 kg): 21 g/10min
- Tear Strength: 42 kgf/cm
- Tensile Strength: 12 kgf/cm²
- Elongation at Break: 400%
- Hardness: Shore A 90 ±3
- Molding Shrinkage Rate (longitudinal/transverse): 0.5–1.0%
- Temperature Resistance: -30 ℃ to 90 ℃
- Flame Retardancy: UL-94 HB (1.5 mm)
Typical Properties
| Property | Test Standard | Condition | Unit | ST-90A |
|---|---|---|---|---|
| Specific Gravity | ASTM D792 | — | g/cm³ | 0.90 |
| Melt Flow Index | ASTM D1238 | 200 ℃ / 2.16 kg | g/10min | 21 |
| Tear Strength | ASTM D638 | — | kgf/cm | 42 |
| Tensile Strength | ASTM D638 | — | kgf/cm² | 12 |
| Elongation at Break | ASTM D638 | — | % | 400 |
| Hardness | ASTM D2240 | ±3 | Shore A | 90 |
| Molding Shrinkage | — | longitudinal / transverse | % | 0.5–1.0 |
| Temperature Resistance | — | — | ℃ | -30 to 90 |
| Flame Retardancy | UL-94 | 1.5 mm | — | HB |
Processing Recommendations
- Cylinder Temperature (Rear): 150–160 ℃
- Cylinder Temperature (Center): 160–170 ℃
- Cylinder Temperature (Front): 160–170 ℃
- Nozzle Temperature: 160–180 ℃
Disclaimer
The property data listed are typical values for reference only. They are not guaranteed specifications and should not be used as inspection criteria. Users must evaluate the material under their own processing conditions to confirm suitability for intended applications. Responsibility for end-use performance lies solely with the user.
Source: Su Master New Materials (Guangdong) Co., Ltd. — Technical Data Sheet (ST-90A):contentReference[oaicite:0]{index=0}.