DOWSIL™ 1-2577 Silicone Conformal Coating
Description:
DOWSIL™ 1-2577 is a one-part, abrasion-resistant, room-temperature curing silicone conformal coating designed for rigid and flexible PCBs. It meets MIL-SPEC 46058C and offers superior thermal stability, stress relief, and durability compared to organic coatings.
Key Features & Benefits:
- Wide Temperature Resistance: Operates from -45°C to 200°C, withstanding brief exposure up to 250°C.
- Low-Stress Protection: Silicone’s low modulus reduces stress on PCB components during thermal cycling.
- Simple Application & Cure: Medium viscosity ensures controlled flow and prevents spreading into restricted areas.
- Fast Room-Temperature Cure: Tack-free in under 10 minutes, ideal for high-volume assembly.
- Abrasion & Environmental Resistance: Protects against moisture, dust, vibration, and chemicals.
- UL 94 V-0 Flammability Rating: Ensures fire resistance for critical applications.
Applications:
- Automotive electronics (e.g., control units, power modules)
- Power tools & home appliances
- High-vibration environments
- High-moisture conditions
Cured Electrical Properties:
- Dielectric Strength: 400 V/mil
- Dielectric Constant (10⁵ Hz): 2.74
- Dissipation Factor (10⁵ Hz): <0.0002
- Volume Resistivity: 5×10¹³ ohm/cm
Cured Physical Properties:
- Tensile Strength: 240 psi
- Elongation: 74%
- Hardness: 80 Shore A
DOWSIL™ 1-2577 is a “dispense and forget” solution, ensuring quick processing, strong durability, and excellent environmental protection for PCB manufacturing and assembly.
