DOWSIL™ EA-7300 is a silicone adhesive designed for rapid curing at lower temperatures, with a secondary moisture cure to enhance adhesion. It offers high elongation and low modulus, making it ideal for stress relief in applications exposed to thermal expansion mismatches or environmental conditions.
| Property | Value | Unit | Comments |
|---|---|---|---|
| General Characteristics | |||
| One or Two-Part | One | ||
| Color (Part A/Base & Dispensed) | Gray | ||
| Specific Gravity | 1.15 | g/mL | |
| Viscosity | |||
| 20 rpm, HAT 7 | 250,000 | cP | |
| 2 rpm, HAT 7 | 650,000 | cP | |
| Curing Properties | |||
| Cure Time at 105°C | 30 minutes | >90% final adhesion | |
| Cure Time at 125°C | 5 minutes | >90% final adhesion | |
| Mechanical Properties | |||
| Durometer | 20 | Shore A | ASTM D412 |
| Tensile Modulus (100% elongation) | 0.34 | MPa | ASTM D412 |
| Tensile Strength | 2.93 | MPa | ASTM D412 |
| Elongation | 600 | % | ASTM D412 |
| Adhesion Properties | |||
| Lap Shear Strength to AlClad | 1.89 | MPa | 5 min at 125°C + 7 days RT |
| Electrical Properties | |||
| Dielectric Strength (non-dried) | 15.7 | kV/mm | 2.0 mm thickness |
| Volume Resistivity | 1.1E+13 | ohm-cm | |
| Dielectric Constant (Permittivity) | 3.1 – 3.2 | 100 Hz – 1 MHz | |
| Dissipation Factor | 0.001 – 0.004 | 100 Hz – 1 MHz |
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Techniq Vietnam provides end-to-end materials and process solutions, integrating world-class technologies in adhesives, soldering, and thermal management.
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