What is Paint coatings for steel?
Prefabrication primers are used on structural steelwork, immediately after blast cleaning, to maintain the reactive blast cleaned surface in a rust free condition through the fabrication process until final painting can be undertaken. These types of primers are not used before the application of thermally spraying coatings.
The method of application of paint systems and the conditions of application have a significant effect on the quality and durability of the coating. Standard methods used to apply paints to structural steelwork include application by brush, roller, conventional air spray and airless spray/electrostatic airless spray.
Airless spray has become the most commonly used method of applying paint coatings to structural steelwork under controlled shop conditions. brush and roller application are more commonly used for site application, though spraying methods are also used. ‘Stripe’ coatings applied to edges and sharp corners are usually applied by brush.