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BJB Polyurethane F-25 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: | 5tE1vt_BJB-Polyurethane-F-25-A-B.pdf  |
| PRICE: | Order Products email sales@su-jiao.com |
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The F-25 A/B is a production oriented material system, that features a one to two hour demold time depending on part size and configuration. F-25 A/B has a 10-minute work time, which allows ample time to mix, vacuum de-gas and pour air-free parts. Product Highlights:
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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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| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Specific Gravity | |||
| -- 1 | 1.02 | g/cm³ | |
| -- | 1.03 | g/cm³ | ASTM D792 |
| -- 2 | 1.05 | g/cm³ | |
| Shrinkage | 0.90 | % | ASTM D2566 |
| Thermoset | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Gel Time | 15.0 - 17.0 | min | |
| Work Time 3(25°C) | 10.0 - 12.0 | min |
| Additional Information | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Cure Time (25°C) | 5.0 - 7.0 | day |
| Hardness | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Durometer Hardness (Shore A) | 20 - 30 | ASTM D2240 |
| Elastomers | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Strength (Yield) | 2.38 | MPa | ASTM D412 |
| Tensile Elongation (Break) | 1100 | % | ASTM D412 |
| Tear Strength | 7.88 | kN/m | ASTM D624 |
| Compression Set | 36 | % | ASTM D395 |
| Thermoset | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Thermoset Components | |||
| Component a | Mixing ratio by weight: 60, mixing ratio by capacity: 58 | ||
| Component B | Mixing ratio by weight: 100, mixing ratio by capacity: 100 | ||
| Shelf Life | 26 | wk | |
| Thermoset Mix Viscosity | Brookfield | ||
| 25°C 4 | 3700 | cP | Brookfield |
| 25°C 5 | 550 | cP | Brookfield |
| 25°C | 1200 | cP | Brookfield |
| Demold Time (25°C) | 60 - 120 | min |
| Additional Information | Nominal Value | Unit | Test Method |
|---|---|---|---|
| In order to achieve maximum physical properties, a post cure with heat is required. BJB recommends 24 hours at ambient temperature, 77°F (25°C), followed by 16 hours at 130-160°F (54-71°C). |
| Note Message | |
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| 1 . | Part B |
| 2 . | Part A |
| 3 . | 100g mass |
| 4 . | Part A |
| 5 . | Part B |
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