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Conformal coatings are designed to protect printed circuit boards and related equipment from their environment.

Typically applied at 25-50µm, these coatings ‘conform’ to the contours of the board allowing for excellent protection and coverage, ultimately extending the working life of the PCB. The use of conformal coatings is particularly important in safety critical areas, including automotive under-bonnet applications, military, aerospace and industrial applications.

Electrolube is among the world’s foremost experts in the formulation and application of conformal coatings designed to meet international approvals (including European and American military specifications). The range of products currently available comprises acrylics, silicones, polyurethanes, water-based and non-VOC coatings.

Electrolube can offer both transparent and pigmented coatings to improve or camouflage the appearance of printed circuit boards. The range also includes a number of ancillary products to complement the use of our conformal coatings. These include thinners and removers, peelable coating masks and thixotropic materials for the effective coating of lead ends.

Conformal coatings can be used in a wide range of environments to protect circuitry from hazards such as moisture, salt spray, chemicals (e.g. fuels, coolants, etc.) and high temperature. This can prevent corrosion, mould growth and electrical failures such as current leakage. The protection provided by conformal coatings allows for higher power and closer track spacing, in turn enabling designers to meet the demands of miniaturisation and reliability.