Texin? 250
Thermoplastic Polyurethane Elastomer (Polyester)
Texin 250 resin is an aromatic polyester-based thermoplastic polyurethane with a Shore hardness of approximately 50D. It is processed primarily by extrusion and blow molding but can also be used for injection molding.
Features | - Abrasion Resistant，Chemical Resistant，Low Gel，Medium Clarity，Oil Resistant，Solvent Resistant
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Uses | - Film，Footwear，Hose，Profiles，Sheet，Tubing
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Agency Ratings | - FDA 21 CFR 177.1680，FDA 21 CFR 177.2600
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Appearance | |
Processing Method | - Blow Molding，Extrusion，Injection Molding
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Density / Specific Gravity |
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-- | 1.22 |
| ASTM D792 |
-- | 1.22 | g/cm3 | ISO 1183 |
Molding Shrinkage |
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Flow : 0.100 in | 8.0E-3 | in/in | ASTM D955 |
Across Flow : 0.100 in | 8.0E-3 | in/in | ASTM D955 |
Across Flow : 0.100 in | 0.80 | % | ISO 2577 |
Flow : 0.100 in | 0.80 | % | ISO 2577 |
Durometer Hardness |
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| ASTM D2240, ISO 868 |
Shore A | 95 |
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Shore D | 50 |
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Flexural Modulus |
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| ASTM D790, ISO 178 |
73°F | 12000 | psi |
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158°F | 5220 | psi |
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Taber Abrasion Resistance |
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1000 Cycles, 1000 g, H-18 Wheel | 70.0 | mg | ASTM D1044 |
1000 Cycles, 1000 g, H-18 Wheel | 70.0 | mg | ISO 4649 |
Tensile Stress |
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| ASTM D412, ISO 37 |
100% Strain | 1700 | psi |
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300% Strain | 4600 | psi |
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Tensile Strength (Yield) | 6700 | psi | ASTM D412, ISO 37 |
Tensile Elongation (Break) | 400 | % | ASTM D412, ISO 37 |
Tear Strength |
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-- 2 | 775 | lbf/in | ASTM D624 |
-- | 780 | lbf/in | ISO 34-1 |
Compression Set 3 |
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| ASTM D395B, ISO 815 |
73°F, 22 hr | 15 | % |
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158°F, 22 hr | 35 | % |
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Bayshore Resilience | 25 | % | ASTM D2632 |
Glass Transition Temperature | -4.00 | °F | DMA |
Vicat Softening Temperature | 239 | °F | ISO 306/A50, ASTM D1525 4 |
Drying Temperature - Desiccant Dryer | 199 to 219 | °F |
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Drying Time - Desiccant Dryer | 2.0 | hr |
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Suggested Max Moisture | 0.030 | % |
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Suggested Max Regrind | 20 | % |
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Rear Temperature | 374 to 410 | °F |
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Middle Temperature | 374 to 419 | °F |
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Front Temperature | 392 to 428 | °F |
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Nozzle Temperature | 401 to 437 | °F |
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Processing (Melt) Temp | 401 to 419 | °F |
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Mold Temperature | 59 to 104 | °F |
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Injection Pressure | 6000 to 15000 | psi |
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Injection Rate | Slow-Moderate |
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Back Pressure | < 200 | psi |
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Screw Speed | 40 to 80 | rpm |
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Cushion | 0.125 | in |
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Hold Pressure: 60 to 80% of Injection Pressure |
Drying Temperature | 199 to 219 | °F |
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Drying Time | 2.0 | hr |
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Suggested Max Regrind | 20 | % |
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Cylinder Zone 1 Temp. | 356 to 392 | °F |
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Cylinder Zone 3 Temp. | 356 to 401 | °F |
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Cylinder Zone 5 Temp. | 356 to 410 | °F |
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Melt Temperature | 374 to 401 | °F |
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Die Temperature | 365 to 410 | °F |
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