What are protective coatings? How are they different to paint and how do they work?
The terms paint and coating refer to different materials. Protective coatings are applied by painters, but they are very different from domestic paint and it is important to understand how they work so that they can be applied correctly. It is critical that painters follow manufacturer's directions meticulously and to specification because the products dry and cure in a different manner to domestic paints. This cannot be stressed enough.
Paint is primarily formulated for decorative purposes in private dwellings and commercial buildings. Coatings refer to materials designed for industrial use, protecting the asset against the environment and corrosion control.
Protective Coatings must:
The characteristics of a coating are determined by the choice of resins, pigments, solvents and additives used. For example:
A primer coat:
An intermediate or undercoat should:
A top coat should:
The most common products a painter will use are: