Most Important Parts of Paint Sprayers: New User Guide Paint sprayers have made it easier to paint interior and exterior parts of the building and several other products. Due to this reason, their usage has increased a lot in the last few years. The quick and effortless application of any indoor outdoor paint sprayer is possible due to several of its major components and parts. They assist in the smooth functioning of this tool. The absence and even a slight misbehaving of any of these components can negatively affect the performance of sprayers. Following are the main components of paint sprayers and their functions.See more: