Conformal Coating Application Instructions

Specifications

When properly applied by directions, Circuit Shield™ spray coating process should ensure a uniform dry film thickness of 25-50 μm (1.0 – 2.0 mils) and meet 5B rating for crosshatch adhesion per ASTM D3359. Corrosion durability shall be confirmed through testing to no less than 2,500 hours salt spray resistance per DIN 53167 (ASTM B117) using aluminum test coupons. Dielectric Withstanding Voltage test shall pass at 1500 volts/mil thickness.
Circuit Shield™ Applications

HVAC/R Printed Circuit Boards (PCB)
Elevator Control Panels
Telephone Communication Boxes
Outdoor Timers and Switches
Traffic Lighting and Rail Crossing Control Panels
Automotive, Heavy-Duty Truck & Off-Highway Equipment
Circuit Shield™ Features

Excellent moisture resistance
Mold & mildew resistance
Superior adhesion
Supports dielectric properties
UV resistant qualities
Directions

Surface must be free of grease, rust and wax. Prior to coating, follow these steps:

Use an approved cleaner for PCBs.
Allow circuit board to thoroughly dry.
Mask off or protect areas from overspray.
Allow can to warm to room temperature.
Shake until mixing ball rattles, then continue to shake for two minutes. Coating must be applied above 50ºF (10ºC).
3-Step Application

Move can and apply coating to the entire board with overlapping strokes left and right, keeping spray pattern vertical. Allow paint to become tacky.
Move can and apply coating to the entire board with overlapping strokes up and down, keeping spray pattern horizontal. Allow paint to become tacky.
Move can and apply coating to the entire board with overlapping strokes left and right, keeping spray pattern vertical.
After use, invert can and spray to clear valve.