Surface Treatment and Coating

Abstract

humidity controlled environment to avoid corrosion during surface preparation. Corrosion rates accelerate exponentially with relative humidity (RH) over 50% and most coating compliance is 80%RH on a metal surface. The effect of thermal inertia usually required the surrounding air to be 20-30%RH (39-43°F, temperature difference from surface to air) less than the required surface humidity to allow for this.