For example, the Graco Magnum X5 offers a 0.015mm spray tip that is reversible Then, rotate the cap one-half turn and spray another pattern. A spray gun has two distinct passageways: one for air, the second for paint. HVLP air pressures are lowered internally in the spray gun air passages. If the defect is inverted, obstruction is on the air cap. As the trigger pulls the tapered needle away from the tip, an increasing amount of paint will flow through the orifice in the cap. Spray gun air cap directs compressed air flow onto paint steam flowing from fluid nozzle to atomise the paint into spray pattern Basic Spray Gun Disassembly Following any spray painting job with an air spray gun being either conventional, HVLP, or LVLP type, the following cleaning and basic disassembly and reassembly steps are usually recommended. With a production gun, open the air control at the base of the handle all the way by turning it counter clockwise until it stops. Remedy: Clean air holes or replace air cap. The gun sounds like a standard gravity feed spray gun. You don't specify which brand or model of gun you are using, nor which needle/cap/tip size, so I can only give you general guidelines on usage. But, it can be a bit intimidating as a beginner. Fill the cup 1/2 full, and blow all the gun parts dry afterward. You will notice that all the orifices in an air cap are larger in an HVLP air cap in order to allow the volume to pass. Ex: Stamped needle will show the following #1011315 – therefore this needle can be used with the 1.3mm and 1.5mm nozzle and air cap set. Did you know …that the T-Model Air Cap Sets (5100 Series) share some of the same needle. HVLP relates to the maximum air pressure allowed internally at the cap (10psi). 1-Determine if the obstruction is on the air cap or the fluid tip. When I was first starting out, I couldn't find any… Causes: Air holes clogged on air cap or air cap damaged. Do this by making a test spray pattern. Choosing the Correct Air Cap Set: Choosing the correct air cap set for your HVLP spray gun can sometimes be a challenge. The Difference Between HVLP, LVMP, and Conventional Spray Gun Air … The first time you use a spray gun, practice with water instead of solvent. Needle tips come in different sizes as well. HVLP utilizes the volume of air available at the air cap rather than pressure to atomize. Spray Gun: Beginner's Guide: Using a spray gun can give you a smooth as silk surface finish. Spray guns such as the Wagner Control Spray Double Duty Paint Sprayer allow for vertical, horizontal and even circular fan patterns to be achieved on your project. Close the fan and fluid controls (turn them clockwise). It's perfect for doing faux metal or even just painting a straight color really fast.