1. Fast Cure for Enhanced Production Efficiency
EA-9189 H achieves tack-free status in just 2 minutes at 25°C, significantly shortening production cycles. The adhesive and components can be handled in approximately 10 to 120 minutes (depending on the adhesive selected and the amount applied), enabling faster manufacturing throughput. For applications requiring accelerated cure, mild heat below 60°C (140°F) may be used to speed up the curing process.
2. Excellent Flame Retardancy
The product is UL 94V-0 flammability classified, providing outstanding fire safety performance after curing, making it suitable for electronic assembly applications with stringent flame retardancy requirements.
3. Outstanding Thermal Conductivity
With a thermal conductivity of 0.88 W/m·K, EA-9189 H effectively conducts and dissipates heat generated by electronic components, helping maintain devices within safe operating temperatures and extending the service life of electronic products. In the context of increasingly miniaturized and integrated electronic devices, effective thermal management has become one of the key factors in ensuring device reliability.
4. Superior Electrical Insulation
After curing, the adhesive exhibits a volume resistivity of up to 3.3×10¹⁵ Ω·cm, a dielectric constant of 2.59 (at 100K Hz), a dielectric strength of 700 V/mil (28 kV/mm), and a dissipation factor of only 0.009 (at 100K Hz), providing reliable electrical insulation protection for electronic components.
5. Strong Adhesion Without Primer
The product delivers excellent adhesion on a variety of substrates without requiring a primer. In unprimed lap shear tests, it achieves adhesion strengths of 327 psi (2.2 MPa) to aluminum, 343 psi (2.3 MPa) to copper, 349 psi (2.4 MPa) to FR4, and 187 psi (1.2 MPa) to PC. Dow silicone adhesives are specially formulated to provide unprimed adhesion to many reactive metals, ceramics, and glass, as well as to selected laminates, resins, and plastics.
6. Wide Temperature Range Performance
The cured silicone adhesive remains operational over a temperature range of -45°C to 200°C (-49°F to 392°F) for extended periods, providing excellent thermal stability and cold resistance for electronic assemblies. For low-temperature performance, thermal cycling to conditions such as -55°C (-67°F) may be possible, though performance should be verified for specific parts or assemblies.
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