| About |
|---|
| TUFFALLOY 4270 is a series of Liquid Molding Compounds with thermoplastic properties such as high impact, high heat distortion, and low viscosity. This unique chemistry developed by Hapco to meet today’s market demands for prototype and low production parts needs. THE TUFFALLOY 4270 Series are available in (4) speeds. The user has the ability to use different speeds of TUFFALLOY 4270, typically using a slower speed initially and increasing to a fast set, 1 minute working life. PROCESSING: TUFFALLOY 4270 Series can be pressure cast, vacuum cast, or open cast. For best results, TUFFALLOY 4274/75 should be used with Hapco’s metering/dispensing equipment, RAPIDFIL, MINI FIL, and RAPIDSHOT.&& |
| Product Description | |
|---|---|
| Generic | 热塑性聚酯 |
| Material Status | Commercial: Active |
| Features | High impact resistance,Low Viscosity,Quick molding cycle,High Heat Resistance |
| Availabilitys | North America |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.13 | g/cm³ | ASTM D4669 |
| Shrinkage rate | |||
| MD | 0.050 to 0.30 | % | ASTM D2566 |
| Weight（per cubic inch） | 19 | g | |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | 80 | J/m | ASTM D256 |
| Notched impact strength of cantilever beam | > 110 | J/m | ASTM D256 |
| Thermosetting mixed viscosity | Nominal value | Unit | Test method |
|---|---|---|---|
| 25℃ | 250 to 350 | cP | ASTM D4878 |
| stripping time | |||
| 21℃ | 360 to 480 | min | Internal Method |
| Gelation time | |||
| 25℃ | 15.0 | min | ASTM D2971 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s D | 79 to 89 | ASTM D2240 | |
| Tensile modulus | 2820 | MPa | ASTM D638 |
| tensile strength | 79.3 | MPa | ASTM D638 |
| Tensile strain | |||
| fracture | 7.0 | % | ASTM D638 |
| Bending modulus | 2850 | MPa | ASTM D790 |
| bending strength | 98.6 | MPa | ASTM D790 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | ASTM D648 | ||
| 0.45 MPa, unannealed | 90.0 | ℃ | ASTM D648 |
| 1.8 MPa, unannealed | 81.0 | ℃ | ASTM D648 |
| Thermosetting components | |||
| Component A | 按重量计算的混合比: 100, 按容量计算的混合比: 100 | ||
| Component B | 按重量计算的混合比: 85, 按容量计算的混合比: 100 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Range: 250 to 350 |
| 3. 100 g |
| 【 Disclaimer 】 Guangzhou Soliao Information Technology Co., Ltd. reserves all rights. The information in this data table was obtained from the manufacturer of the material on soliao.com. Soliao.com makes every effort to ensure the accuracy of this data. However, the search company does not assume any responsibility for the uncertainty and consequences caused to users by these data values and suggestions, and strongly recommends verifying the data values with the material supplier before the final selection of materials. |