Spray Gun Transfer Efficiency. I seem to remember that conventional spray guns had a transfer efficiency of 40 airless and air assisted airless had transfer efficiencies of 40 electrostatic spray guns where rated at 65 and the dip operations above 90. This reduces paint consumption per component by as much as half creates a much cleaner working environment and vastly reduces the speed with which consumables such as filters have to be replaced.
A correctly set up electrostatic air assisted spray gun can transfer between 60 80 of the paint onto the item being painted. The entire spray pattern is deposited on the foil. By looking at this as a ratio it means youre leaving one out.
The same hvlp gun tested to the en standard has 70 to 78 percent transfer efficiency.
This method requires a flat sheet of aluminum foil approximately twice the height of the spray pattern and approximately 3 feet long. Selecting the most efficient spray gun for the intended application is important to optimize your production. This reduces paint consumption per component by as much as half creates a much cleaner working environment and vastly reduces the speed with which consumables such as filters have to be replaced. To keep waste to a minimum make sure that your fan size is optimized and your fluid and air pressures are as low as possible.