Definition - What does Two-coat System mean?
A two-coat system is a method to apply two coatings on a material's surface. The two-coat system helps to ensure complete coating coverage of the material's surface and enhance the overall corrosion resistance of the material.
Corrosionpedia explains Two-coat System
A powder-on-powder coating is a popular use of the two-coat system, which involves coating a material with a powder primer. The powder primer is then cured and the second powder coating is applied.
Another common use of the two-coat system is done with galvanized materials. A material, once galvanized, is then painted. The paint coating acts as the second coat in this two-coat system.
Two-coat systems are typically more expensive than other coating options. The need for a two-coat system must be determined on an individual basis.