I imagine that you will have to thin or reduce just about any can paint you buy.. unless you got a much different gun than I do. It's not too hard a job to thin/reduce your paint via instructions and then paint a test shot on a piece of scrap metal. Just choose your paint and go. Older technology paints are cheaper.. like alkyd enamils.. usually inthe 20-50$ range per gallon.. then you get into the fancier acrilic and acrilic modified.. and urethanes.. etc.. epoxy paints.. etc.. Money can go as high as you want to pay. Finish and longevity on the older paint technologies in general are not as good as the more expensive stuff.. however your costs are cheaper.. and in some cases.. they are easier to use.. less steps.. less addative.. less critical time frame between primer and 2nd coats..e tc. Both have their places. If you ar making a compentition trailer queen tractor. or one that will se out int he environment all th time.. a more fade resistant and beter looking ( $$$ ) paint may be needed. If you have something to keep the UV light and most of the environment off the tractor / or just do hobby showing.. thent he cheaper paints can do fine. I have my workers under tarp car ports... paint is fine after a few years. i also have a single 'hobby' show tractor that is waxed and garaged 100% of the time she isn't at a show. for 30$ a gallon paint.. she shure shines and looks pretty.. etc. If she had 100$ a gallon paint.. she's look a tad better too. While materials do play a big role in final product..surface preperation plays the biggest part.. IMHO. You paint 100$ paint over rusty pitted metal and then compair it to 30$ paint that somebody took the time to sand and fill, and prime and sand again.. and then paint.. and the 30$ job is going to look a whole lot better.. Next variable is environmental condition. temperature, wind, humidity, and suspended contaminate particles will all effect cure/dry time and finish.. last is technique. Overspray, thin mix.. thick mix.. air control.. etc.. all will effect final outcome. And the more you paint.. the better you get with technique, and judging environmental conditions prior to painting... surface prep is decided by you sanding/grinding tolerance.. etc.. Soundguy
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