Dielectric Coating Solutions
Dielectric coatings are thin layers of non-conductive material applied to a surface to improve electrical insulating properties. Their primary function is to prevent electrical current from passing through or across the component. These coatings are designed to withstand voltage breakdown, helping to prevent circuits and conductive traces from arcing, short-circuiting, or electrical failure.
Benefits of Dielectric Coatings
Electrical Failure
Electrical Insulation
Thermal Management
Electrical Safety
Short Circuit Prevention
Flatline Spray and Hand Spray
The first form of dielectric coating application is a Flatline Spray machine. This industrial coating system is designed to apply coatings evenly and consistently across flat parts and 3D substrates. By using advanced spray technology, DECC can engineer coating finishes to meet exact thickness requirements and target only the areas that require protection.
DECC can also apply these coatings by hand spray using experienced coating professionals. Hand-spray application is ideal for complex geometries, specialized parts, touch-up work, and low-to medium-volume production where precision and control are critical.
Coatings DECC Applies
Parker Lord® Sipiol UV: It cures in seconds with UV light and is electrically insulating.
H.B. Fuller® EV Therm 602: A two-step, thermally conductive, flame-retardant UV curable resin system.
Parker Lord® JMC-700K: Coating provides electrical insulation, heat resistance, and oil resistance.
Henkel® BONDERITE B-DC 5100: A lightweight, thermally conductive dielectric coating that delivers electrical insulation and efficient heat management.
Hipot Testing
A critical step in the dielectric coating process is hipot (high-potential) testing, which verifies that the coating can withstand a specified voltage without electrical breakdown. At DECC, hipot testing is performed to ensure every coated component provides the level of electrical insulation required for its application. A coating may fail a hipot test if defects such as pinholes, solvent bubbles, craters, or porosity create pathways for electrical current to pass through.
By incorporating hipot testing into our quality control process, DECC delivers coated components with a high level of confidence, helping customers ensure reliability, safety, and consistent performance in demanding applications.
