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Technical Product Information |  |
| DOWSIL™ 3-1965 Conformal Coating Clear 3.6 KG |
| Product Overview |
| DOWSIL™ 3-1965 Conformal Coating Clear is a 1-part, solventless, fast-curing RTV elastomeric silicone conformal coating engineered for rapid throughput and reliable protection of sensitive printed circuit boards (PCBs) against moisture, corrosion, dust, and thermal stress. Formulated without added solvents for low VOC emissions, it promotes sustainable electronic manufacturing. Certified with a UL 94 V-0 flame rating, it achieves rapid tack-free time at room temperature upon exposure to atmospheric moisture. Integrated with a UV indicator, it enables easy automated optical inspection (AOI) under blacklight. The 3.6 kg pail/gallon package provides an ideal size for selective coating machinery, dip tanks, and batch dispensing. |
| Key Features and Benefits |
| • Fast Room-Temperature Cure: Rapid RTV moisture cure offers short tack-free time, speeding up line throughput without thermal ovens. • Solventless Formulation: Free of flammable solvents and harmful VOCs, supporting workplace safety and environmental compliance. • UL 94 V-0 Flame Rating: Certified flame-retardant performance for safety-critical electrical and electronic modules. • UV Indicator: Fluoresces under UV light for effortless automated optical inspection (AOI) of coating coverage and film quality. • Elastomeric Stress Relief: Flexible silicone rubber matrix absorbs thermal expansion stress and mechanical vibration. • Convenient Gallon Size (3.6 KG): Optimal packaging size for selective coating machinery, dip tanks, and batch dispensing lines. |
| Technical Specifications |
| • Appearance / Color: Clear / Transparent (UV fluorescing) • Packaging / Net Weight: Gallon / Pail / 3.6 KG • Chemical Base: 1-Part Solventless Silicone (Fast RTV Moisture Cure) • Viscosity (@ 25°C): ~100-200 mPa.s • Tack-Free Time: Fast (~3-6 Minutes) • Hardness (Shore A): ~30-40 • Service Temperature Range: -45°C to +200°C (-49°F to +392°F) |
| Applications |
| • High-speed conformal coating of automotive electronics, ECUs, sensors, and body control modules. • Protection of industrial controls, inverters, power supplies, and automation circuitry against moisture. • Sealing outdoor LED lighting drivers, display boards, and telecommunications equipment. • Automated assembly lines requiring a solventless, fast-curing, UL 94 V-0 certified moisture barrier. |
Usage Note: Substrates should be thoroughly cleaned and dried prior to application. Being a 1-part product, no mixing is required; it is fully compatible with selective coating robots, dip tanks, and air atomized spray guns. Protect open containers and fluid supply lines from prolonged exposure to atmospheric humidity to prevent premature curing.
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