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BJB Polyurethane WC-748 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: | 2t5KTf_BJB-Polyurethane-WC-748-A-B.pdf  |
| PRICE: | Order Products email sales@su-jiao.com |
Wechat:
| Message |
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| WC-748 A/B is a two part, 55 Shore D clear polyurethane adhesive/coating system designed to repair cracks and scratches. WC-748 A/B is also used to bond dissimilar substrates and has excellent adhesion to plastic surfaces. It is particularly suited for bonding or clear coating a wide variety of porous, synthetic, or natural substrates, such as rigid or flexible foamed plastics, fabrics, wood or modeling board. WC-748 A/B will bond construction materials such as polystyrene insulation board, rigid polyurethane foam, ABS, PVC and Neoprene rubber. |
| 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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| Forms |
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| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Specific Gravity | 1.12 | g/cm³ | ASTM D792 |
| Specific Gravity | |||
| Part A | 1.117 | g/cm³ | |
| Part B | 1.037 | g/cm³ |
| Thermoset | Nominal Value | Unit | |
|---|---|---|---|
| Tack Free Time (25°C) | 16.0 | hr | |
| Work Time (25°C) 1 | 30.0 | min |
| Fill Analysis | Nominal Value | Unit | |
|---|---|---|---|
| Brookfield Viscosity | |||
| Mixed : 25°C | 1850 | ||
| Part A : 25°C | 4150 | ||
| Part B : 25°C | 800 |
| Additional Information | Nominal Value | Unit | |
|---|---|---|---|
| Cure Time (23°C) 2 | 2.0 to 3.0 | day | |
| T-Peel | 7.0 | kN/m |
| Hardness | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Durometer Hardness (Shore D) | 50 to 60 | ASTM D2240 |
| Mechanical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Strength (Yield) | 15.2 | MPa | ASTM D638 |
| Tensile Elongation (Yield) | 370 | % | ASTM D638 |
| Flexural Modulus | 324 | MPa | ASTM D790 |
| Flexural Strength | 9.86 | MPa | ASTM D790 |
| Thermoset | Nominal Value | Unit | |
|---|---|---|---|
| Thermoset Components | |||
| Part A | Mix Ratio by Volume: 93 Mix Ratio by Weight: 100 | ||
| Part B | Mix Ratio by Weight: 100 Mix Ratio by Volume: 100 | ||
| Shelf Life | 26 | wk |
| Note Message | |
|---|---|
| 1 . | 100g |
| 2 . | Optimum physical properties are obtained by moderate post-curing WC-748 for 2 to 4 hours at 120 to 140°F (49 to 60°C) after tack free and dry to touch at ambient temperature cure. |
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