Protective Coatings Application - Unit 3.5.5: De-Humidification

Objective: To understand the use of de-humidification as a method of controlling environmental conditions during preparation and coating activities.

  • Relative humidity is expressed as the amount of moisture in the air compared to the maximum amount possible.
  • Relative humidity has a major bearing on surface preparation and coating application.
  • If we had very little relative humidity we would have little corrosion.
  • Relative humidity is expressed as 1-100%.