Dowsil LDC2577D 1Kg Three Anti-Paint Transparent Waterproof Silicone Glue Waterproof Paint

Product Basic Attributes​​
Dowsil LDC2577D is a single-component, room-temperature curing silicone dispersion coating designed for electronic applications. It offers excellent moisture resistance, low stress, and durability across a wide temperature range. The product is a translucent liquid with a viscosity of 104 centipoise (0.1 Pascal-seconds) and cures to form a flexible, abrasion-resistant layer.

Product Overview​​
Dowsil LDC2577D is a low-stress silicone elastomer specifically formulated for protecting printed circuit boards (PCBs) and electronic components from moisture, vibration, and harsh operating environments. It provides reliable dielectric insulation and ensures long-term performance in demanding conditions. The coating is easy to apply via dipping, spraying, or automated methods and requires only atmospheric moisture for curing, though mild heating can accelerate the process. Its fast room-temperature cure and reworkability make it an ideal choice for high-efficiency electronics manufacturing.

Special Properties ​
This coating stands out for its ​​low stress​​ during and after curing, minimizing stress on sensitive electronic components. It achieves ​​fast room-temperature curing​​ (5 minutes at 25°C) with optional heat acceleration (2 minutes at 60°C/15% RH). The cured film has a ​​Shore D hardness of 23​​, balancing flexibility and durability. Electrical properties include a ​​dielectric strength of 660 V/mil (26 kV/mm)​​ and ​​volume resistivity of 6×10¹³ Ω·cm​​, ensuring robust insulation. Notably, it maintains performance across a ​​broad temperature range (-45°C to 200°C)​​ and is easily reworkable for repair or modification.

Application Scenarios​​
Dowsil LDC2577D is widely used in:

• ​​PCB Protection​​: Shields circuits from moisture, dust, and thermal cycling in consumer electronics, automotive, and industrial devices.
• ​​Wire and Component Coating​​: Protects sensitive leads and connectors in medical devices, aerospace, and telecommunications.
• ​​Rework-Friendly Applications​​: Ideal for prototypes or field repairs due to its easy removal and reapplication capabilities.
• ​​Automotive Electronics​​: Withstands engine bay vibrations and temperature fluctuations (source: industry case studies on silicone coatings for PCBs).