DOWSIL EA9189-H
Harmonization Code : 3208.20.90 | Paints and varnishes that are dispersed or dissolved in a non aqueous medium
Main features
- One-Part No-Mix Bonding
- Tack-Free Time at 25 deg C
- UL 94 V-0 Classification
Product Description
DOWSIL™ EA-9189 H White RTV Adhesive is a one-part, moisture-curing silicone adhesive for module assembly applications. The alkoxy-cure RTV formulation requires no mixing and develops a tack-free surface in approximately 2 minutes at 25°C, supporting short handling intervals during assembly. After cure, the white adhesive combines a Shore A hardness of 80 with documented adhesion to aluminum, copper, polycarbonate, and FR-4 test substrates. It also provides thermal conductivity of 0.88 W/m·K, high volume resistivity, dielectric strength of 28 kV/mm, and a UL 94 V-0 flammability classification for electronics assembly applications requiring mechanical attachment, electrical insulation, and flame-rated material performance.
Key features
- One-part moisture cure: The ready-to-use alkoxy-cure formulation requires no component mixing and cures at room temperature.
- Fast tack-free time: Forms a tack-free surface in approximately 2 minutes at 25°C.
- Electrical and flame performance: Provides 3.3 × 1015 ohm·cm volume resistivity, 28 kV/mm dielectric strength, and a UL 94 V-0 classification after cure.
Applications / Suitable for
- Module assembly
- Battery-pack assemblies
- Electronic boards, components, and housings
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Mechanical Properties
Thermal Properties
Electrical Properties
Additional Information
As-supplied / before-processing properties
Representative product characteristics before cure.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Component count | One-part | — | As supplied |
| Physical form | Paste | — | As supplied |
| Color | White | — | Visual |
| Cure system | Alkoxy moisture cure | — | Room-temperature cure |
| Tack-free time | 2 | minutes | 25°C |
After-processing / final-state properties
Typical cured-material properties. Values are not intended for use as product specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Specific gravity | 1.68 | — | Cured material |
| Tensile strength | 3.9 | MPa | Equivalent to 576 psi |
| Elongation | 32 | % | Cured material |
| Hardness | 80 | Shore A | Durometer |
| Thermal conductivity | 0.88 | W/m·K | Cured material |
| Volume resistivity | 3.3 × 1015 | ohm·cm | Cured material |
| Dielectric strength | 28 | kV/mm | Equivalent to 700 V/mil |
| Flammability classification | UL 94 V-0 | — | Cured material |
