Texin? 255
Thermoplastic Polyurethane Elastomer (Polyester)
Texin 255 resin is a polyester-based thermoplastic polyurethane with a Shore hardness of approximately 55D. It can be processed by injection molding;extrusion processes are not recommended.
Features | |
Uses | - Gaskets，Gears，Seals，Wheels
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Agency Ratings | - FDA 21 CFR 177.1680，F(xiàn)DA 21 CFR 177.2600
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Appearance | |
Processing Method | |
Density / Specific Gravity |
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-- | 1.21 |
| ASTM D792 |
-- | 1.21 | 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 (Shore D) | 55 |
| ASTM D2240, ISO 868 |
Flexural Modulus |
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| ASTM D790, ISO 178 |
-22°F | 175000 | psi |
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73°F | 20000 | psi |
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158°F | 9010 | psi |
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Shear Strength | 5590 | psi | ASTM D732 |
Taber Abrasion Resistance |
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1000 Cycles, 1000 g, H-18 Wheel | 50.0 | mg | ASTM D1044 |
1000 Cycles, 1000 g, H-18 Wheel | 50.0 | mg | ISO 4649 |
Tensile Stress |
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| ASTM D412, ISO 37 |
50% Strain | 1800 | psi |
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100% Strain | 2310 | psi |
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300% Strain | 4700 | psi |
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Tensile Strength (Yield) | 9200 | psi | ASTM D412, ISO 37 |
Tensile Elongation (Break) | 500 | % | ASTM D412, ISO 37 |
Tear Strength |
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-- 2 | 900 | lbf/in | ASTM D624 |
-- | 900 | lbf/in | ISO 34-1 |
Compression Set |
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| ASTM D395B, ISO 815 |
73°F, 22 hr | 20 | % |
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73°F, 22 hr 3 | 15 | % |
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158°F, 22 hr | 65 | % |
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158°F, 22 hr 3 | 35 | % |
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212°F, 22 hr | 75 | % |
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212°F, 22 hr 3 | 50 | % |
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Bayshore Resilience | 40 | % | ASTM D2632 |
Instrumented Dart Impact 4 |
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| ASTM D3763 |
-22°F, 0.100 in, Total Energy | 443 | in·lb |
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73°F, 0.100 in, Total Energy | 512 | in·lb |
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