- Protective conformal coating. Dow DOWSIL Q1-4010 Conformal Coating Clear is a one-component, heat-curing, solvent-free elastomer used as a protective coating for printed wiring boards, sensitive components, and flexible and rigid circuit boards. It offers medium viscosity, UV indicators for inspection, and mechanical and environmental protection. This 453 g bottle is a Dow product repackaged by KitPackers, an authorized repackager of Dow.
- How conformal coatings work. Conformal coatings are applied in thin layers, typically a few mils or microns, onto printed circuits or other substrates. They provide proven, cost-effective environmental and mechanical protection that can significantly extend the life of the components they cover, guarding against moisture, contaminants, and mechanical stress.
- Cure and processing. Q1-4010 is a stress-relieving, no-solvent-added coating with rapid, versatile cure processing controlled by temperature. Time to cure depends on film thickness, oven type, and board population density; large, heavily populated boards can take longer because their greater thermal mass takes extra time to reach temperature.
- Adhesion and recognition. Dow conformal coatings are formulated to adhere to most common substrates; on difficult, low-surface-energy surfaces, adhesion may be improved by priming or surface treatment such as chemical or plasma etching. Q1-4010 is UL, IPC, and MIL recognized, and its good adhesion allows use with many low-solids (no-clean) and no-lead solders.
Recommended For
- Protective coating of printed wiring boards
- Protecting sensitive components
- Flexible and rigid circuit boards
- Smaller-volume or bench-scale coating work
- Applications needing UV-inspectable coatings
Product Details
- Product type: One-part silicone conformal coating
- Color: Clear / transparent
- Viscosity: Medium viscosity
- Cure: Heat cure (temperature-controlled)
- Solvent: Solvent-free / no solvent added
- Inspection: UV indicators for inspection
- Recognition: UL, IPC, and MIL recognized
- Packaging: Repackaged by KitPackers; 453 g bottle
Primary Industries
- Electronics and PCB manufacturing
- Aerospace and defense electronics
- Industrial electronics
- Communications equipment
Standards and Certifications
- UL recognized
- IPC recognized
- MIL (military specification) recognized



