• Item Name: DOWSIL™ 3-1944 HP RTV Coating
• Manufacturer: Dow
• Technologies: One-part polydimethylsiloxane RTV conformal coating
• Color: Translucent with UV indicator
• Cure Type: Room temperature cure with optional heat acceleration
• Package Size: 0.45 kg, 3.6 kg, 18 kg, 200 kg containers (other options available)
• Shelf Life: 12 months
DOWSIL™ 3-1944 HP RTV Coating is a one-part, translucent, solventless silicone elastomer designed for conformal coating and thin encapsulation. It cures at room temperature with optional heat acceleration and features a fast tack-free time, good flame resistance (UL 94 V-0), and added UV indicator for easy automated inspection. The product flows well for precise coverage, curing to a soft, low-stress elastomer that protects delicate circuitry while remaining reworkable.
Pin and solder joint coverage to prevent corrosion and arcing.
Thin section encapsulation for PCB assemblies.
Localized protection of pins, terminals, or critical devices.
Moisture and contaminant barrier for sensitive electronics.
Repairable conformal coating, allowing component replacement and recoating.
| Property | Unit | Result |
|---|---|---|
| Still Not Mixed | ||
| One or Two-Part | – | One |
| Appearance | – | Translucent |
| Viscosity | cP / mPa·s / Pa·s | 53,000 / 53,000 / 53 |
| After Cured | ||
| Specific Gravity | – | 1.0 |
| Tack-Free Time @ 25°C | minutes | 7 |
| Durometer | Shore A | 36 |
| Shelf Life @ 25°C | months | 12 |
| UL Flammability Classification | – | 94 V-0 |
| Usable Temperature Range | °C | -45 to 200 (with tolerance to -55 short-term) |
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