I used Rustoleum Rusty Metal primer. I think by description it would be a good product to use inside the frame where the potential of pre-existing rust is very high. Using a swab of some sort is a good idea to knock off loose rust before priming.
Technical Data Sheet
"Rusty Metal Primer 7769 is designed for heavily rusted surfaces only. Clean Metal Primer 7780 is designed for lightly rusted, bare metal or previously painted surfaces."
"Remove all dirt, grease, oil, salt and chemical contaminants by washing the surface with commercial detergent or other suitable cleaner. Rinse thoroughly with fresh water and allow to fully dry. Scrape and wire brush loose and/or flaking rust or deteriorated coatings. Apply appropriate primer to bare, slightly, or heavily rusted metal."
I stopped at Lowes on the way home from work today. An employee told me that it is a "small store", hence the poor inventory. So I wasn't expecting much as far as metal prepping material. I found several chemicals that I think would work, however. Here is a list of the chemicals (that I can remember) on the shelf and what I know, or DON'T know!
My goal here is to find The Right Stuff
to prep the exterior of the frame prior to priming.
Lacquer Thinner(usual stuff)- not gonna use it
V,P&M (or something like that)- don't know anything, label says cleans metal
MEK- old posts/threads say this works good, but dangerous?
Denatured Alcohol- old post/thread says this is good & I have some
Paint Thinner- not gonna use it either
Xylol(product of Toluol)- don't know anything
Pre-Paint Prep- green product, label says it works good
Acetone- mixed feelings about this, but I have some, always thought it good
Boiled Linseed Oil- not much info for metal prep
I would love to have everybody's insight. Thanks
PS- If a material, such as Acetone, is a solvent to a paint, then wouldn't it go by rule that that material could be used as a cleaner, to said same paint, without any ill effect after curing?