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BJB Polyurethane TC-857 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: | HMwguB_BJB-Polyurethane-TC-857-A-B.pdf  |
| PRICE: | Order Products email sales@su-jiao.com |
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TC-857 A/B is a rigid 84 Shore D polyurethane system that exhibits exceptional physical properties. It is a high performance material that features high heat deflection capability and low shrinkage. TC-857 is a clear casting material that allows for unrestricted tinting and precise color matching. This product is ideal for producing intrinsically colored parts requiring a non-painted finish. This system can be easily processed by hand or with meter-mix-dispense, pressure or vacuum cast equipment. Product Highlights:
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| General Information | |
|---|---|
| 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 | |||
| Part A | 1.08 | ||
| Part B | 1.06 | ||
| Color | |||
| Part A | Colorless | ||
| Part B | Pale Yellow |
| Thermoset | Nominal Value | Unit | |
|---|---|---|---|
| Gel Time | 5.5 - 7.5 | min | |
| Work Time (25°C) 1 | 5.0 - 7.0 | min |
| Fill Analysis | Nominal Value | Unit | |
|---|---|---|---|
| Brokfield Viscosity | |||
| Mixed | 1.20 | Pa·s | |
| Part A : 25°C | 0.600 | Pa·s | |
| Part B : 25°C | 2.80 | Pa·s | |
| Part B : 32°C | 0.750 | Pa·s |
| Additional Information | Nominal Value | Unit | |
|---|---|---|---|
| Cure Time (25°C) | 5.0 - 7.0 | day |
| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Density | 1.12 | g/cm³ | ASTM D792 |
| Molding Shrinkage - Flow 2(12.7 mm) | 0.40 | % |
| Hardness | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Durometer Hardness (Shore D) | 82 - 86 | ASTM D2240 |
| Mechanical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Modulus | 2000 | MPa | ASTM D638 |
| Tensile Strength | 62.7 | MPa | ASTM D638 |
| Tensile Elongation (Break) | 11 | % | ASTM D638 |
| Flexural Modulus | 2070 | MPa | ASTM D790 |
| Flexural Strength | 84.1 | MPa | ASTM D790 |
| Impact | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Notched Izod Impact | 50 | J/m | ASTM D256 |
| Thermal | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Deflection Temperature Under Load | ASTM D648 | ||
| 0.45 MPa, not annealed | 98.9 - 104 | °C | ASTM D648 |
| 1.8 MPa, not annealed | 96.1 - 102 | °C | ASTM D648 |
| Thermoset | Nominal Value | Unit | |
|---|---|---|---|
| Thermoset Components | |||
| Component a | Mixing ratio by weight: 100, mixing ratio by capacity: 100 | ||
| Component B | Mixing ratio by weight: 55, mixing ratio by capacity: 56 | ||
| Shelf Life | 26 | wk | |
| Demold Time (25°C) | 180 - 240 | min |
| Additional Information | Nominal Value | Unit | |
|---|---|---|---|
| Note: Reported physical properties based on elevated temperature cured test specimens.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 150-180°F (66-82°C). Support of the part may be required to prevent part deformation during heat cure. |
| Note Message | |
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| 1 . | 100g mass |
| 2 . | 12x0.5x0.5 in |
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