Thermal Spray Coatings | Coating Quality Thermal spray coating processes inherently have several variables that need to be controlled in order to ensure consistency in coating thickness and metallurgical characteristics. Unlike a machining process where a single point or multi-point tool shaves off material from a piece of bar stock or plate stock, where the critical parameters of feeds, speeds and coolant flow determine part quality...... Similar Editorial : Spray Tan Basics by Valerie McDermott. | Source : Advanced Pavement Technologies