| About |
|---|
| ebalta LH 28-1 is a two components epoxy laminating resin, precuring at room temperature and, depending on postcuring, can be used till 175°C. Since this laminating resin system contains no fillers, it has got good wetting properties and makes a high glass fabric content possible. This leads to a low coefficient of thermal expansion and high strength. Together with aluminium granules, ebalta LH 28-1 is suitable for back filling of heat resistant moulds and moulding tools. At room temperature the curing takes 7 days and the material can only be used for applications till 60°C. Applications Vacuum forming tools Prepreg tools hot gluing tools Blow moulds Polyester injection moulds Polyester press tools Properties very high heat resistance, depending on post curing till 175°C long processing time low exothermic character heat curing&& |
| Product Description | |
|---|---|
| Generic | 环氧树脂 |
| Material Status | Commercial: Active |
| Features | Good Rigidity,Low Exotherm,High Heat Resistance,Baking |
| Availabilitys | Africa & Middle East ,North America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| IMPACT | Nominal value | Unit | Test method |
| Charpy Unnotch Impact strength | 10 to 22 | kJ/m² | ISO 179 |
| Uncured Properties | Nominal value | Unit | Test method |
|---|---|---|---|
| Density | |||
| 20℃ | 1.07 to 1.13 | g/cm³ | |
| viscosity | |||
| 25℃ | 0.65 to 0.85 | Pa·s | |
| Curing time | |||
| 20℃ | 24 to 48 | hr | |
| storage stability | |||
| 20 ℃ | 240 to 360 | min |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s D | 82 to 88 | ISO 7619 | |
| Bending modulus | 2550 to 3050 | MPa | ISO 178 |
| bending strength | 85.0 to 105 | MPa | ISO 178 |
| compressive strength | 77.0 to 93.0 | MPa | ISO 604 |
| Bending strain | 3.4 to 4.6 | % | ISO 178 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed | 172 to 178 | ℃ | ISO 75-2/B |
| Glass transition temperature | 182 | ℃ | DSC |
| Thermosetting components | |||
| resin | 按重量计算的混合比: 100 | ||
| Hardening method | 按重量计算的混合比: 40 | ||
| Post curing time | |||
| 40℃ | 4.0 | hr | |
| 60℃ | 6.0 | hr | |
| 100℃ | 4.0 | hr | |
| 135℃ | 4.0 | hr | |
| 160℃ | 4.0 | hr |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 200 g |
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