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BJB Polyurethane WC-766 A/B
| Category: | PUR, Unspecified , Polyurethane |
| Manufacturer: | BJB Enterprises, Inc. |
| Trademark: | BJB Polyurethane |
| Fillers: | - |
| Ports: | Qinzhou, Shekou, Shanghai, Ningbo |
| Delivery Terms | FOB, CIF, DAP, DAT, DDP |
| PDF: | o44f3s_BJB-Polyurethane-WC-766-A-B.pdf  |
| PRICE: | Order Products email sales@su-jiao.com |
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WC-766 A/B is a two part, clear, colorless 65 Shore D urethane castable product that is commonly used to make clear or tinted parts of all kinds. When used at room temperature, castings 1 / 8 " thick or larger can be readily cast. Castings that are less than 1 / 8 " thick generally require a mild post-cure. Product Highlights:
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| General Information | |
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| Features |
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| Uses |
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| RoHS Compliance |
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| Appearance |
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| Processing Method |
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| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Specific Gravity | |||
| -- 1 | 1.03 | g/cm³ | |
| -- 2 | 1.08 | g/cm³ | ASTM D792 |
| Shrinkage | 0.40 | % | ASTM D2566 |
| Thermoset | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Gel Time | 20.0 | min | |
| Work Time 3(25°C) | 15.0 | 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 D) | 60 - 70 | ASTM D2240 |
| Mechanical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Modulus | 214 | MPa | ASTM D638 |
| Tensile Strength (Yield) | 31.7 | MPa | ASTM D638 |
| Tensile Elongation (Break) | 230 | % | ASTM D638 |
| Flexural Modulus | 200 | MPa | ASTM D790 |
| Flexural Strength | 2.17 | MPa | ASTM D790 |
| Elastomers | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tear Strength | 80.6 | kN/m | ASTM D624 |
| Impact | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Notched Izod Impact | 480 | J/m | ASTM D256 |
| Thermoset | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Thermoset Components | |||
| Component a | Mixing ratio by weight: 75, mixing ratio by capacity: 72 | ||
| Component B | Mixing ratio by weight: 100, mixing ratio by capacity: 100 | ||
| Shelf Life | 26 | wk | |
| Thermoset Mix Viscosity | Brookfield | ||
| 25°C 4 | 650 | cP | Brookfield |
| 25°C 5 | 550 | cP | Brookfield |
| 25°C | 600 - 700 | cP | Brookfield |
| Demold Time (25°C) | 360 - 480 | 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 180°F (82°C). Support of the part may be required to prevent part deformation during the heat curing process. |
| Note Message | |
|---|---|
| 1 . | Part B |
| 2 . | Part A |
| 3 . | 100g mass |
| 4 . | Part A |
| 5 . | Part B |
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