CRC Opaque Acrylic Resin Protective Varnish for PCB Electronic, Aerosol 400 ml 80kV/mm Dielectric Strength 32915

CRC 32915 Opaque Acrylic Resin Protective Varnish, packaged as an aerosol of 400 ml, features a dielectric strength of 80kV/mm. This protective varnish is tailored specifically for printed circuit boards and electrical windings, providing a reliable shield against environmental factors and mechanical shocks.

Its excellent thermal conductivity enhances component heat dissipation and longevity. The varnish effectively covers solid contact assemblies to maintain consistent electrical performance by preventing contamination from moisture, dust, and other contaminants.

Applications span across electrical and electronic sectors, being particularly useful in aeronautics maintenance and offshore installations where durability and environmental resistance are critical.

Surface preparation before application involves thorough degreasing to ensure adhesion. The varnish should be sprayed from a distance of approximately 25 cm to achieve an even coat. Drying time at ambient temperature ranges from 30 to 60 minutes, accelerating to 3 to 4 hours when heated to 60°C.

To maintain the spray nozzle, it is recommended to clean by spraying upside down until only gas is emitted, preventing clogging. The varnish contains a UV tracer for ease of inspection in quality control processes under ultraviolet light.

Forms a strong protective barrier that safeguards electronics from moisture and dust. Good thermal conductivity supports effective heat dissipation. Resistant to mechanical shock to protect components during use. UV tracer facilitates quick identification under UV inspection.

Suitable for electronic and electrical applications including aeronautic and offshore use.

This protective varnish is essential for maintaining the performance and longevity of sensitive electronic assemblies under demanding industrial environments. Explore more protective coatings and electronics maintenance products in the Electronics Cleaners & Protective Coatings category on EnvMart.