ES3402 Epoxy Underfill Adhesive
ES3402 is a one-component epoxy for electronic devices and it is also suited for the application of electronic devices dam, insulation, moisture resistance, encapsulation, and bonding. The resin offers good machinability and stability. This product exhibits high adhesion strength, greasy resistance, and chemical and solvent resistance. The durability of this product is high levels and this resin can pass many environmental test experiments. For its characteristic and reliability, this resin is used widely in various areas, as a high-performance adhesive.
Features and benefits
- Medium viscosity and good leveling; providing matted surface
- Highly vibration resistance at ordinary temperature
- Excellent retained strength after environmental test
- Comply to the 2011/65/EU RoHS regulations
- Comply to Chlorine < 900ppm, Bromine < 900ppm, Chlorine + Bromine < 1500 ppm
Specifications
TYPICAL UNCURED PROPERTIES
| Properties | ES3402 |
| Appearance | Viscous liquid |
| Color | Black |
| Viscosity *25°C,
S14 20 rpm, cps |
30,000 |
| Viscosity *25°C,
S14 2rpm, cps |
31,250 |
| Thixotropic index | 1.04 |
TYPICAL CURING PROPERTIES
| Properties | ES3402 |
| Pot Life, 25°C, days | 2 |
| Through Cured Time 120°C, min | 60 |
TYPICAL CURED PROPERTIES
| Properties | ES3402 |
| Glass Transition Temp., (MDSC), °C | 64 |
| CTE (*2) (>Tg), μm/m/°C | 226 |
| Durometer Hardness, Shore D | 69 |
| Specific Gravity (20/200C) | 1.28 |
| Water Absorption Ratio (25°C/24hr), % | 0.97 |
| Water Absorption Ratio (80°C/24hr), % | 3.15 |
| Water Absorption Ratio (97°C/1.5hr), % | 1.41 |
| Specific Heat 0°C, J/g°C | 6.26 |
| Specific Heat 25°C, J/g°C | 6.66 |
| Specific Heat 50°C, J/g°C | 6.96 |
| Specific Heat 75°C, J/g°C | 7.26 |
| Specific Heat 100°C, J/g°C | 7.47 |
| Degradation Temp (TGA 10°C/min), °C | 305 |
| Weight Loss Ratio @100°C, % | 0 |
| Weight Loss Ratio @150°C, % | 0 |
| Weight Loss Ratio @200°C, % | 0 |
| Weight Loss Ratio @250°C, % | 0.5 |
| Weight Loss Ratio @300°C, % | 4.5 |
| Weight Loss Ratio @350°C, % | 11.6 |
| Volume Resistivity, Ohm-cm | 5 x 10^15 |
| Surface Resistivity, Ohm | 5 x 10^14 |
| Dielectric Constant 100Hz | 4.37 |
Technical Documents
ES3402 Technical Data Sheet
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