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BJB Polyurethane TC-680 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: | VRQgAE_BJB-Polyurethane-TC-680-A-B.pdf  |
| PRICE: | Order Products email sales@su-jiao.com |
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| Message |
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| TC-680 A/B is a two-component polyurethane elastomer compound specifically designed for casting applications. This product is a safe, easy-to-handle, room temperature mixing and curing system that contains no TDI, MDA, or MOCA. The low shrinkage, superior toughness, and excellent detail reproduction of TC-680 A/B makes this system ideal for general purpose castings and quality tooling operations. |
| General Information | |
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| Features |
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| Uses |
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| Appearance |
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| Processing Method |
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| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Specific Gravity | |||
| -- | 1.04 | g/cm³ | ASTM D792 |
| -- 1 | 1.06 | g/cm³ | |
| -- 2 | 1.09 | g/cm³ | |
| Specific Volume | 0.936 | cm³/g |
| Thermoset | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Gel Time | 25.0 | min | |
| Work Time 3(25°C) | 20.0 | min |
| Additional Information | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Weight Gain - 24-hour water immersion | 3.7 | % |
| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Molding Shrinkage - Flow | 0.20 | % | ASTM D2566 |
| Hardness | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Durometer Hardness (Shore A) | 75 to 85 | ASTM D2240 |
| Mechanical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Modulus | 30.2 | MPa | ASTM D412 |
| Elastomers | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Stress | ASTM D412 | ||
| 100% Strain | 4.07 | MPa | |
| 200% Strain | 5.17 | MPa | |
| 300% Strain | 6.21 | MPa | |
| Tensile Strength (Yield) | 10.2 | MPa | ASTM D412 |
| Tensile Elongation (Break) | 720 | % | ASTM D412 |
| Tear Strength | 39.4 | kN/m | ASTM D624 |
| Electrical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Surface Resistivity | 5.0E+15 | ohms | ASTM D257 |
| Dielectric Constant (1 kHz) | 3.90 | ASTM D150 | |
| Dissipation Factor (1 kHz) | 0.010 | ASTM D150 | |
| Insulation Resistance | 3.0E+12 | ohms |
| 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: 50, Mix Ratio by Volume: 49 | ||
| Shelf Life | 26 | wk | |
| Thermoset Mix Viscosity | ASTM D2393 | ||
| 25°C 4 | 60.0 | cP | |
| 25°C 5 | 6000 | cP | |
| 25°C 6 | 2100 | cP | |
| Demold Time (25°C) | 240 to 360 | min | |
| Post Cure Time (25°C) | 120 to 170 | hr |
| Note Message | |
|---|---|
| 1 . | Part A |
| 2 . | Part B |
| 3 . | 100 g mass |
| 4 . | Part B, Brookfield |
| 5 . | Part A, Brookfield |
| 6 . | Mixed, Brookfield |
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