Help with setting up gun!
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Hello everybody! does anybody know where i can find a good article on how to properly set up a spray gun? or can anyone tell me? i ask this because ive been told that if the gun is set up poorly you will get a lot of orange peel! thanks everybody!
Basically you need to select the appropriate needle/nozzle size for the product you are using as well as the appropriate air cap. This info may be avaliable from your gun manufacturer and/or your paint manufacturer. Some cheaper guns and cheaper paints do NOT offer this info. Trial and error as well as experience can help you out.
Most top coats (S.S, basecoat, clearcoats) as well as sealers spray well with a 1.3mm tip, as a starting point if no info is avaliable. Primer surface is usually good with a 1.8.
Gun pressure should be read at a regulator at the gun, while the trigger is pulled. Gun pressure with vary a lot depending on the gun and material you are spraying. Again, refer to tech sheets for a starting point.
Now that the gun is together with the correct components, in good working order and hooked up to a good air supply you can put your product into the gun and spray against a test panel or some masking paper.
Open the fluid needle all the way, then turn it back in 1/2 turn. Open the fan all the way. Pull the trigger and set the air pressure as recommended. Spray at one spot for a brief moment. The spray pattern should be even and have an consistant shape and consistant coverage from one end to the other. The exact size and shape will vary with air cap and gun. Now do the same and spray horizontally. The product should build and cover evenly without running. Do the same horizontally and hose it on until it runs. When it runs, it should run evenly acoss the whole spray pattern. Make a few passes as you would painting a car. Look at at and see if it meets your standards. Let it flash/dry a little to see if it runs or sags. If you are happy, the gun is ready to spray. If not, you will need to adjust either the fan size, fluid and/or air pressure.
Air pressure, if set appropriately probably won’t change much. The fan may be dialed in a little if needed, and fluid needle may be turned in more to adjust your spraying speed.
Adjust it to what suits you. Your technique will be congruent with the set up (gun distance from the panel, speed, overlap, etc). This is the procedure for spray the gun at full capacity. If you are spraying a small area, adjust as needed following the same basic steps. There are a lot of variables, but once you get used to it a certain way, you won’t adjust it much from there.
well all i can do is tell you i run mine wide open fan and wide open fluid, some guys like to run the fluid 3 turns out, guess it depends on your comfort level, but if your getting orange peel no matter what you gun settings you need to either slow down or get closer to the panel, so keep the gun 5 ta 7 inches away and your speed is determined by the way your material is flowing out of the gun onto the panel, hope that helps homie good luck
all wide open here but i clean (tighten) the fan up a tiny bit…. :blink:
THANK YOU SO MUCH!!!!! i will sure try out all the tips you guys have told me! Im planning on buying a iwata LPH-400LVX, the extreme base coat gun! ive used it before and i really like the feel of it! if i had the money i would buy the supernova but that can wait! thanks everybody for the tips!
let me give you the same advise i got, i demoed the lph, and looked into the super nova but was told for the price the guns are not much different, so keep that in mind
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