| About |
|---|
| 20-2121 is formulated for electronic potting, encapsulating and casting applications. The 20-2121 is a two-component, low viscosity, room temperature curing system. This is an easy to use product that does not contain TDI, MbOCA or Mercury. 20-2121 will cushion and protect sensitive electronic components. It will impart very little stress on components during cure or thermal cycling. The 20-2121 Polyurethane meets the Food and Drug Administration (FDA) regulations permitting use in food contact applications. The raw materials used in this product comply with the FDA regulations of Title 21 Code of Federal Regulations under Sections 175.105 and 175.300. The base Natural Oil Polyol (NOP) used in 20-2121 is obtained directly from a plant source without chemical modifications. Due to the raw materials selected, this product is low in toxicity and considered a GREEN potting compound. Using renewable resources such as NOPs will reduce the demand on non-renewable fossil fuels and reduce the overall production of carbon dioxide. Features: Low Toxicity Green Low Viscosity Low Durometer Moisture Resistant Low Shrinkage & Exotherm FDA compliant Benefits: Reduce employee exposure to dangerous chemicals Reduce demand on non-renewable fossil fuels Quick self leveling around components Low stress on components & vibration resistant Can be used in wet environments Will not damage components during cure May be used in food contact applications&& |
| Product Description | |
|---|---|
| Generic | PUR |
| Material Status | Commercial: Active |
| Features | Renewable resources,Low or no water absorption,Low Exotherm,Low Viscosity,Low contractility,Low toxicity,Food contact compliance |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Shrinkage rate | |||
| MD | 0.014 | % | |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Linear coefficient of thermal expansion | |||
| MD | 2.1E-4 | 1/℃ | |
| Thermal conductivity coefficient | 0.30 | W/m/K |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | > 1.0E+15 | ohms |
| Thermosetting mixed viscosity | Nominal value | Unit | Test method |
|---|---|---|---|
| 25℃ | 3200 | cP |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| working temperature | -30.0 to 125 | ℃ |
| Uncured Properties | Nominal value | Unit | Test method |
|---|---|---|---|
| colour | Amber Clear/Transparent | ||
| Weight Mix Ratio (PBW) | |||
| Part A | 100 | ||
| Part B | 120 | ||
| Density | |||
| 25℃ | 0.958 | g/cm³ | |
| 25℃ | 1.14 | g/cm³ | |
| viscosity | |||
| 25℃ | 0.80 | Pa·s | |
| 25℃ | 20 | Pa·s | |
| Curing time | |||
| 85℃ | 0.66 | hr | |
| 65℃ | 1.5 | hr | |
| 45℃ | 2.5 | hr | |
| 25℃ | 24 | hr | |
| Gelation time | |||
| 60℃ | 20 | min | |
| 25℃ | 90 | min |
| Cured Properties | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s A | 65 | ||
| tensile strength | 13.8 | MPa | |
| Tensile strain | |||
| fracture | 160 | % | |
| tear strength | 20.8 | kN/m | |
| Electrical strength | 26 | kV/mm | |
| Relative permittivity | |||
| 1 kHz | 3.40 | ||
| Volume resistivity | 7.2E+14 | ohms·cm | |
| Dissipation factor | |||
| 1 kHz | 0.017 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Part A |
| 3. Part B |
| 【 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. |