How/what to clean my new touch up paint gun with? - RCCanada - Canada Radio Controlled Hobby Forum
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Old 03-16-2004, 06:34 PM   #1
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How/what to clean my new touch up paint gun with?

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Got a new touch up gun and there are some questions.

How do you clean it regarding degreasing it? I have read that cleanliness re oil contamination is really a high priority when painting and avoiding "fisheye".

Then it says it has to be oiled. Why does a paint gun need oiling? There are no moving parts (like in a ratchet airgun for example). I could post the instructions re oiling but maybe if someone can explain where/how.

It says to use a light machine oil. Then I read about air tool oil. I'm so confused.

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Old 03-16-2004, 10:00 PM   #2
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I don't know which gun you have but there is usually packing of some type around the area the fluid needle goes through the gun body. There is also packing around the fan adjustment. Also it help to lube the pivot pin on the trigger.

Laquer thinner is the best for cleaning a gun. Must be cleaned immediately after use or you will be using paint stripper for cleaning it.

I used to be a bodyman.
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Old 03-16-2004, 10:00 PM   #3
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You could probably use some thinners or other type of degreaser to clean the gun of the oil residue from packing???

I have a DeVilbiss touch up gun and just rebuilt it. (new springs, packings etc.) It came with a little tube of blue coloured lube, called air gun lube, made especially for paint guns. The rebuild instructions specifically stated to lube the main packing around the needle and the packing for the air/fan adjustment screw as well as the spring loaded ball, valve assembly, and the lever hinge point.
The place where I bought my rebuild kit warned me not to use a machine type oil as it could cause "fish-eyes" in the paint job......
MAAC #41076
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Old 03-16-2004, 11:17 PM   #4
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clean your gun

There are moving parts in a spray gun that will rust and sieze. The pintle (needle and seat) are important to keep clean and lubricated. If the seat or needle rust or become pitted, it will diminish the spray patttern and cause paint not to spread evenly. you'll get runs in the paint or tiger stripe paint pattern. I know any automotive paint supply company has a chemical to mix with paint to prevent fish eye.
I think you'll have a lot of fun with the gun once you get used to it.
Rob Harway
Sun Parlor Flyers
Windsor, Ontario

"Artificial Intelligence is no substitute for Natural Stupidity"
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Old 03-17-2004, 09:51 AM   #5
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From what I've found, "fish-eye" eliminator is used with lacquers and urethanes. Couldn't find any reference to latex.

Having said that, preventing fish eyes is obviously desirable and I did find this site. Basically, it stresses to keep the surface scrupulously clean.

Lotso goods tips here.
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Old 03-17-2004, 10:20 AM   #6
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an other interresting site on the subject
MAAC 5057 L
Jean. C. Blouin
CFI Club Aeromodeliste de l`Estrie
Skype jean.blouin
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