Dowsil EA 9189 is a single-component, alkoxy-cure silicone adhesive with fast tack-free time and controlled volatility. It is formulated for use in sensitive electronic systems requiring low outgassing, moderate thermal management, and reliable flame resistance (UL 94 V-0 rated). It cures at room temperature upon exposure to moisture, forming a durable, high-durometer silicone seal that protects components from moisture, dust, and mechanical stress.

Type: One-part moisture cure RTV silicone adhesive

 Color: White / Gray

 Tack-Free Time @25°C: 2 minutes (typical)

 Shore A Hardness: 80

 Tensile Strength: 576 psi (3.9 MPa)

 Elongation: 32%

 Thermal Conductivity: 0.88 W/m·K (EA-9189H variant)

 Dielectric Strength: 28 kV/mm- Volume Resistivity: 1 x 10¹⁵ ohm-cm

 Volatile Content: < 100 ppm

 Temperature Range: -45°C to 200°C

 Package: 330ml

• One-part, no-mix formula for easy handling

• Extremely fast tack-free time (2 minutes typical)

• Low volatility and controlled outgassing for sensitive electronics

• High durometer (Shore A 80) with good mechanical strength<br• UL 94 V-0 flame retardant rating

• Good thermal and electrical insulation performance

• Non-corrosive, alkoxy cure system safe for metals and PCBs

• Bonding and sealing of electronic components on PCBs

• Assembly of sensitive electronic modules requiring low volatiles

• Sealing of housings, lids, and base plates in consumer electronics

• Moderate thermal management applications for power components

• Automotive electronics and industrial control systems