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I'm using a combination of approaches on my Cub and Allis depending on how easy it is to get at things. Main thing is to keep things clean so the paint will stick and use primer. I like Rustoleum clean metal and the red, rusty metal primer. If you are using a two part paint system, follow the mfg. directions to the letter. When I did a lot of painting, with Glasurit (a BASF paint system), one had to be very careful about measuring, shop temp, etc. I won't be showing my tractors so I will brush some parts and spray others and it seems like a good compromise. I degrease usually with Kerosene, follow with a water soluable degreaser (Purple Stuff) and a final wipe with solvent. I like to use Acetone for a final wipe (use nitrile gloves, clean rags, and vent your space well) because it dries without residue but it is toxic (well, all of that stuff is, so be careful and acetone is something to be careful with). MEK is something I would stay away from unless it's called for by the paint mfr (nasty stuff). If you are at the bare metal stage, use Metal Prep after wire brushing or sanding and before priming to grow a layer of iron sulfide (I think it's iron sulfide) to give a better substrate for the primer to stick to. Next I follow with paint per instructions trying to pick a dry day to apply. HTH, Ran in VA
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