I am looking for a formula to calculate the wave solder flux loading / deposition in - μg/in2 of solids or μg/cm2 of solids with the following machine parameters, Flux solid content : % Conveyor speed : m/min Flux Spray Volume : ml / min Spray Head Traverse : mm / sec Does anyone know if there is a calculation that can be used to give the loading? Any help would be most appreciated. Kenny Munro