Wet Film Thickness

A Wet Film Thickness (WFT) gauge, commonly called a comb gauge, is an essential tool for coating applicators to measure the thickness of wet paint or protective coatings immediately after application. Ensuring the correct wet film thickness is crucial for achieving the intended dry film thickness, which directly affects the coating’s protective performance and durability. By using a WFT gauge, operators can avoid problems such as under-application that compromises protection or over-application that wastes materials and increases costs. This simple yet effective tool is widely used in painting, protective coatings, and industrial maintenance for quality assurance and consistency.