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BJB Polyurethane WC-780 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: | vyFuS5_BJB-Polyurethane-WC-780-A-B.pdf  |
| PRICE: | Order Products email sales@su-jiao.com |
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WC-780 A/B is an impact resistant, rigid, 82 Shore D material that is commonly used to make clear or tinted castings of all kinds. When used at room temperature, castings 1" thick or larger can be readily cast. PRODUCT HIGHLIGHTS:
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| General Information | |
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| Features |
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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 | ASTM D792 | ||
| -- 1 | 1.03 | g/cm³ | |
| -- | 1.05 | g/cm³ | |
| -- 2 | 1.08 | g/cm³ | |
| Specific Volume | 0.954 | cm³/g |
| Thermoset | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Work Time 3(25°C) | 3.0 | hr |
| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Molding Shrinkage - Flow | 0.40 | % | ASTM D2566 |
| Hardness | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Durometer Hardness (Shore D) | 80 to 84 | ASTM D2240 |
| Mechanical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Modulus | 1790 | MPa | ASTM D638 |
| Tensile Strength (Yield) | 45.9 | MPa | ASTM D638 |
| Tensile Elongation (Yield) | 65 | % | ASTM D638 |
| Flexural Modulus | 2210 | MPa | ASTM D790 |
| Flexural Strength | 75.8 | MPa | ASTM D790 |
| Compressive Modulus | 2410 | MPa | ASTM D695 |
| Compressive Strength | 57.6 | MPa | ASTM D695 |
| Impact | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Notched Izod Impact | 53 | J/m | ASTM D256 |
| Thermal | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Deflection Temperature Under Load (0.45 MPa, Unannealed) | 70.0 | °C | ASTM D648 |
| Thermoset | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Thermoset Components | |||
| Part A | Mix Ratio by Weight: 100, Mix Ratio by Volume: 100 | ||
| Part B | Mix Ratio by Weight: 85, Mix Ratio by Volume: 89 | ||
| Shelf Life | 26 | wk | |
| Thermoset Mix Viscosity | Brookfield | ||
| 25°C 4 | 750 | cP | |
| 25°C 5 | 650 | cP | |
| 25°C 6 | 600 to 700 | cP | |
| Demold Time (25°C) | 1400 | min | |
| Post Cure Time (25°C) | 120 to 170 | hr |
| Note Message | |
|---|---|
| 1 . | Part B |
| 2 . | Part A |
| 3 . | 100g mass, stock product |
| 4 . | Part B |
| 5 . | Part A |
| 6 . | Mixed |
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