DOWSIL SE 9188
Harmonization Code : 3208.20.90 | Paints and varnishes that are dispersed or dissolved in a non aqueous medium

Main features
- 10-Minute Tack-Free Time
- 2.9 MPa Cured Tensile Strength
- UL 94 V-0 Classification
Product Description
DOWSIL™ SE 9188 RTV Adhesive is a one-part, gray, non-flowing polydimethylsiloxane adhesive for room-temperature bonding, fixing, vibration dampening, and sealing in electronics assemblies. The material requires no mixing and has a typical tack-free time of 10 minutes at 25°C, with optional mild heat acceleration. It is documented with controlled silicone volatility and a UL 94 V-0 flammability classification. Typical cured properties include Shore A 34 hardness, 2.9 MPa tensile strength, 400% elongation, 30 kV/mm dielectric strength, and 1.0 × 10¹⁵ ohm·cm volume resistivity.
Key features
- Non-flowing one-part RTV: The gray adhesive remains in place and requires no component mixing.
- Fast tack-free cure: Typical tack-free time is 10 minutes at 25°C.
- Documented flame classification: The product is listed with UL 94 V-0 flammability classification.
Applications / Suitable for
- Part fixing on circuit boards
- Vibration dampening
- Electronic sealing applications
TDS, SDS & Technical Documents
Technical Specifications
No specifications available.
Additional Information
As-supplied / before-processing properties
Typical as-supplied or processing-state values unless otherwise stated. These values are not sales specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Product form | One-part non-flowing RTV adhesive | N/A | As supplied |
| Color | Gray | N/A | As supplied |
| Tack-free time | 10 | min | At 25°C |
| Low-molecular siloxane content | 30 | ppm | D4-D10 |
| Low-molecular siloxane content | 220 | ppm | D4-D20 |
After-processing / final-state properties
Typical cured, installed, or in-use values under the stated conditions. These values are not sales specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Cured specific gravity | 1.29 | N/A | Typical cured value |
| Hardness | 34 | Shore A | Typical cured value |
| Tensile strength | 2.9 | MPa | Typical cured value |
| Elongation | 400 | % | Typical cured value |
| Dielectric strength | 30 | kV/mm | Typical cured value |
| Volume resistivity | 1.0 × 10¹⁵ | ohm·cm | Typical cured value |
| Dielectric constant | 3.4 | N/A | At 1 MHz |
| Flammability classification | V-0 | UL 94 | Documented classification |





















