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BJB Polyurethane TC-644 A/B
| Category: | TSU , Polyurethane Thermoset Elastomer |
| Manufacturer: | BJB Enterprises, Inc. |
| Trademark: | BJB Polyurethane |
| Fillers: | - |
| Ports: | Qinzhou, Shekou, Shanghai, Ningbo |
| Delivery Terms | FOB, CIF, DAP, DAT, DDP |
| PDF: | B2zKd5_BJB-Polyurethane-TC-644-A-B.pdf  |
| PRICE: | Order Products email sales@su-jiao.com |
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| Message |
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Designed to replace TC-640 A/B, TC-644 A/B has vastly improved physical properties without the use of any mercury containing products. Typical product uses are skin membranes for animated characters, mold fabrication, potting compound applications, and resilient urethane rubber like parts of all types.
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| General Information | |
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| Features |
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| Uses |
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| Appearance |
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| Forms |
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| Processing Method |
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| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Specific Gravity | |||
| -- 1 | 1.03 | g/cm³ | |
| -- | 1.07 | g/cm³ | ASTM D792 |
| -- 2 | 1.13 | g/cm³ | |
| Molding Shrinkage - Flow | 0.10 | % | ASTM D2566 |
| Hardness | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Durometer Hardness (Shore A) | 50 to 60 | ASTM D2240 |
| Elastomers | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Stress | ASTM D412 | ||
| 100% Strain | 1.03 | MPa | |
| 200% Strain | 1.90 | MPa | |
| 300% Strain | 2.69 | MPa | |
| Tensile Strength (Yield) | 5.83 | MPa | ASTM D412 |
| Tensile Elongation (Break) | 430 | % | ASTM D412 |
| Tear Strength | 16.6 | kN/m | ASTM D624 |
| Thermoset | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Thermoset Components | |||
| Part A | Mix Ratio by Weight: 50, Mix Ratio by Volume: 45 | ||
| Part B | Mix Ratio by Weight: 100, Mix Ratio by Volume: 100 | ||
| Shelf Life (25°C) | 26 | wk | |
| Thermoset Mix Viscosity | ASTM D2393 | ||
| 25°C 3 | 850 | cP | |
| 25°C 4 | 550 | cP | |
| 25°C 5 | 930 | cP | |
| Demold Time (25°C) | 120 to 180 | min | |
| Post Cure Time (71°C) | 16 | hr | |
| Gel Time | 9.0 to 10.0 | min | |
| Work Time 6(25°C) | 7.0 to 8.0 | min |
| Note Message | |
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| 1 . | Part B |
| 2 . | Part A |
| 3 . | Part B, Brookfield |
| 4 . | Part A, Brookfield |
| 5 . | Mixed, Brookfield |
| 6 . | 100 g mass |
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