HLD-CC11 Hulida PCB conformal coating

Conformal Coating is a specially formulated, fine polymer composite coating material that forms a protective film after curing to shield circuit boards and related electronic components. It protects equipment from environmental erosion, thereby enhancing and extending service life while ensuring safe and reliable operation.

In real-world conditions such as chemicals, vibration, high dust, salt, high humidity, and other environments, circuit boards may experience issues like corrosion, softening, deformation, mildew, etc., leading to circuit board failure.

Applied to the surface of a circuit board, Conformal Coating forms a three-proof protective layer (moisture-proof, salt-spray-proof, and mildew-proof). At the same time, it provides insulation, dustproofing, mud resistance, corona resistance, corrosion resistance, acid and alkali resistance, anti-vulcanization, anti-aging, high and low temperature shock resistance, high temperature and high humidity resistance, and other superior environmental protection properties. It effectively isolates the circuit board and protects the circuitry from erosion and damage in harsh environments, thereby improving circuit board reliability, increasing the safety factor, and ensuring the service life of the circuit board.

By chemical composition, it can be divided into six types: acrylic, silicone, polyurethane, epoxy resin, nano-coating, and water-based. Regarding curing methods, options include solvent-based curing, room-temperature curing, heat curing, and UV curing.