DYMAX 9-984-LVF
Harmonization Code : 3910.00.00.90 | Silicones in Primary Forms; Others
Main features
- Rapid UV cure
- Bright fluorescent inspection
- Strong substrate adhesion
Product Description
Dymax 9-984-LVF is a single-component, 100% solids UV-curable conformal coating formulated for electronic circuit board protection. Designed for rapid room-temperature cure under long-wave UV light (320-380 nm), thin coating layers cure within seconds while producing bright fluorescence for inspection under black light. The coating provides excellent adhesion to metals, ceramics, and glass-filled epoxy substrates and offers secondary heat-curing capability for shadowed areas on densely populated circuit boards. With RoHS 2015/863/EU compliance, low viscosity, durable cured properties, and long-lasting fluorescence, 9-984-LVF is suitable for electronics manufacturing environments requiring efficient coating application and cure verification.
Key features
- Rapid UV cure: Thin coating layers cure in seconds when exposed to appropriate UV light intensity.
- Bright fluorescent inspection: Retains high-brilliance fluorescence after curing to support black-light inspection processes.
- Strong substrate adhesion: Exhibits excellent adhesion to metal, ceramic, and glass-filled epoxy surfaces.
Applications / Suitable for
- Conformal coating of electronic circuit boards
- Electronics manufacturing and assembly operations
- UV-cured protective coatings requiring fluorescent inspection
- Densely populated circuit boards requiring secondary heat cure in shadowed areas
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Mechanical Properties
Chemical Properties
Other Properties
Additional Information
As-supplied / before-processing properties
Typical uncured properties of Dymax 9-984-LVF prior to UV curing.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Solvent Content | None | - | Typical uncured property |
| Appearance | Clear fluorescing liquid | - | Single-component material |
| Specific Gravity | 1.05 | - | Typical uncured property |
| Viscosity | 150 | cP | Nominal, ASTM D-1384 |
| Shelf Life | 18 | months | 10°C to 32°C, unopened container |
After-processing / final-state properties
Typical cured properties after UV curing.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Durometer Hardness | D80 | Shore D | ASTM D-224 |
| Tensile Strength at Break | 6000 | psi | ASTM D-638 |
| Elongation at Break | 5 | % | ASTM D-638 |
| Dielectric Strength | 1800 | V/mil | ASTM D-1304 |
| Dielectric Constant | 3.4 | - | 1 MHz, ASTM D-1304 |
