DOWSIL 3140 is a transparent, flexible RTV silicone coating designed for PCB and electronic protection. Offers high dielectric strength, UL 94 V-1 flame retardancy, and resistance to moisture, dust, vibration, and thermal shock. Suitable for automotive, telecom, industrial, and consumer electronics.
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Technical Product Information |  |
| DOWSIL™ 3140 RTV Coating – Clear & Flexible Silicone Conformal Coating |
| Product Description |
| DOWSIL™ 3140 is a high-quality, single-component, clear silicone coating designed to protect printed circuit boards (PCBs) from moisture, dust, and vibration. It cures at room temperature (RTV) to form a flexible, elastomeric film with excellent dielectric properties. |
| Key Features |
| • Appearance: Transparent (Enables easy visual inspection of components) • Certification: UL 94 V-1 flame retardancy compliant • Application: Low viscosity for spray, dip, or brush use • Curing: Room temperature moisture cure (RTV) • Performance: Resists chemicals, thermal shock, and environmental stress |
| Applications |
| • Automotive control units and power electronics • Industrial equipment, panels, and telecommunication infrastructure • Consumer electronics, LED drivers, and audio systems • Military and aerospace electronic assemblies |
| Advantages |
| • Minimizes the risk of short circuits with high dielectric strength • Solvent-free formulation ensures safety and compatibility with sensitive parts • Maintains flexibility over a wide temperature range • Easy to repair or rework by removing the local coating area |
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