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BJB Polyurethane WC-792 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: | 5Fp5xg_BJB-Polyurethane-WC-792-A-B.pdf  |
| PRICE: | Order Products email sales@su-jiao.com |
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WC-792 A/B is an impact resistant, rigid, 84 Shore D aliphatic polyurethane that is commonly used to make clear or tinted castings of all kinds. Note: WC-792 A/B requires post-curing. Thin section casts, less than ½" thick, may require in mold post-curing. 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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| Processing Method |
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| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Specific Gravity | 1.10 | g/cm³ | ASTM D792 |
| Specific Gravity | |||
| Part A | 1.077 | g/cm³ | |
| Part B | 1.037 | g/cm³ | |
| Shrinkage 1 | 0.60 | % |
| Mechanical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Compressive Strength | 70.2 | MPa | ASTM D695 |
| Thermoset | Nominal Value | Unit | |
|---|---|---|---|
| Demold Time (25°C) | 16.0 to 24.0 | hr | |
| Work Time (25°C) 2 | 15.0 to 20.0 | min |
| Fill Analysis | Nominal Value | Unit | |
|---|---|---|---|
| Brookfield Viscosity | |||
| Mixed : 25°C | 600 to 700 | mPa·s | |
| Part A : 25°C | 600 to 700 | mPa·s | |
| Part B : 25°C | 750 | mPa·s |
| Additional Information | Nominal Value | Unit | |
|---|---|---|---|
| Cure Time (23°C) 3 | 5.0 to 7.0 | day |
| Hardness | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Durometer Hardness (Shore D) | 82 to 86 | ASTM D2240 |
| Mechanical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Modulus | 1860 | MPa | ASTM D638 |
| Tensile Strength (Yield) | 57.2 | MPa | ASTM D638 |
| Tensile Elongation (Yield) | 20 | % | ASTM D638 |
| Flexural Modulus | 2070 | MPa | ASTM D790 |
| Flexural Strength | 77.2 | MPa | ASTM D790 |
| Impact | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Unnotched Izod Impact | 59 | J/m | ASTM D256 |
| Thermal | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Deflection Temperature Under Load (0.45 MPa, Unannealed) | 79.4 | °C | ASTM D648 |
| Optical | Nominal Value | Test Method | |
|---|---|---|---|
| Refractive Index | 1.490 | ASTM D542 |
| Thermoset | Nominal Value | Unit | |
|---|---|---|---|
| Thermoset Components | |||
| Part A | Mix Ratio by Weight: 100, Mix Ratio by Volume: 100 | ||
| Part B | Mix Ratio by Weight: 75, Mix Ratio by Volume: 78 | ||
| Shelf Life | 26 | wk |
| Note Message | |
|---|---|
| 1 . | 12"x1/2"x1/2" |
| 2 . | 100g |
| 3 . | Product is sufficiently cured after one day, ambient, for general handling. Post curing for 16 hours at 160 to 180°F is recommended. Cure inhibited if cast against a tin catalyzed silicone RTV. |
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