Coating Terms

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In coatings industry, conductivity is frequently used to state the electrical conductivity of wet coating or dry coating film. 1) It is important that electrical conductivity of a solventborne wet coating is convenient for electrostatic spraying application. 2) If a dry coating film is conductive enough, it enables application of another layer of coating by electrostatic spraying or electrophoresis.
To complete the electrical circuit during wet paint electrostatic applications, the paint droplets reaching the surface to be coated should transfer the charge to the ground. Thus, the conductivity of the paint should be adjusted using proper solvents and additives.