painting

chucksoliver77 · Nov 8, 2011

i want to use my sharp 450 paint gun today to paint a tractor but i can't remember the correct air pressure for this old gun, i think 35-40psi. is this correct? thanks in advance, chuck

glennster · Nov 8, 2011

it sounds like a siphon feed gun. i would start out at about 50 psi air pressure, and spray a few test patterns. most paint products will give approximate pressures on the can also. adjust accordingly until you get a real nice fan pattern.

Stephen Newell · Nov 8, 2011

It would depend on what paint you are spraying. An alkyd enamel like tractor supply sells the pressure would be 40-50 pounds. Some automotive paints are as thin as water. 20 to 30 pounds would be better for them.

It would be better if you stay away from alkyd enamels, especially if their red or orange. The color will fade very fast.

Goose · Nov 8, 2011

It should say somewhere on the paint can.

Otherwise, 40-45 pounds is a good place to start. You may have to experiment a bit to get the pattern you want with the paint you're using.

chucksoliver77 · Nov 8, 2011

thanks to everyone. 40psi worked good, the paint i'm useing is tallmans ag specialty industial enamel. chuck

John Harmon · Nov 8, 2011

I have 3 quart size cup spray guns and each one has a different air pressure it likes ,all between 45 and 65 Lb"s on the regulater scale.I also have a top feed gun that i hoped when I bought it that I could go to a lower pressure setting with but ,no,I am using about the same pressure settings with it as I do with the other cup guns.45-65 Lbs.I prefer to spray Acrylic Enamel if available .If possible I buy my paint mail order from Trinity 1945,Co.
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painting

chucksoliver77

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glennster

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Stephen Newell

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Goose

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chucksoliver77

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John Harmon

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