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BJB Polyurethane WC-575 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: | lwLQI1_BJB-Polyurethane-WC-575-A-B.pdf  |
| PRICE: | Order Products email sales@su-jiao.com |
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WC-575 A/B is a two-part, clear, colorless aliphatic-based polyurethane elastomer. It is recommended for use whenever a flexible, permanently transparent elastomer is required. It is UV light and oxidation resistant and can be easily tinted or pigmented to clean bright colors. WC-575 A/B does not contain MOCA, TDI, or MDA. In addition to being an excellent castable product, it also functions well as an adhesive for bonding various substrates. |
| 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 | ASTM D792 | ||
| -- 1 | 1.03 | g/cm³ | ASTM D792 |
| -- 2 | 1.07 | g/cm³ | ASTM D792 |
| -- | 1.06 | g/cm³ | ASTM D792 |
| Specific Volume | 0.947 | cm³/g |
| Thermoset | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Gel Time | 25.0 | 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 |
| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Molding Shrinkage - Flow | 0.60 | % | ASTM D2566 |
| Hardness | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Durometer Hardness (Shore A) | 65 - 75 | ASTM D2240 |
| Elastomers | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Strength (Break) | 9.45 | MPa | ASTM D412 |
| Tensile Elongation (Break) | 300 | % | ASTM D412 |
| Tear Strength | 11.6 | kN/m | ASTM D624 |
| Thermoset | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Thermoset Components | |||
| Component a | Mixing ratio by weight: 100, mixing ratio by capacity: 100 | ||
| Component B | Mixing ratio by weight: 90, mixing ratio by capacity: 94 | ||
| Shelf Life | 26 | wk | |
| Thermoset Mix Viscosity | Brookfield | ||
| 25°C 4 | 300 | cP | Brookfield |
| 25°C 5 | 4730 | cP | Brookfield |
| 25°C | 1050 | cP | Brookfield |
| Demold Time | |||
| 25°C 6 | 240 | min | |
| 25°C 7 | 360 | 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 | |
|---|---|
| 1 . | Part B |
| 2 . | Part A |
| 3 . | 100g mass |
| 4 . | Part B |
| 5 . | Part A |
| 6 . | in larger mass |
| 7 . | 0.25 inch thick |
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