Coating OEM replacement for future

[fred d]

What to use to put a protective coating to keep rust from doing damage to some bare replacement sheet metal panels.
I need to preserve for future needs, and don't want them to become worthless while waiting. High humidity can cause problems.

I know priming and painting with a rattle can is doable. Anything else a good product for protection?

I also have 2 complete quarter panels to do as well

 

[n8n]

If you have a spray gun, use an epoxy primer/sealer like DP-90. then you don't have to topcoat as the DP-90 isn't like rattle can primer or primer/surfacer, it will protect the metal underneath.

 

[wnstwolf]

Had a frame sand blazed at American sandblast in RI sorry not so subtle plug for great company. Any hoot they sprayed what I believe was zinc phosphate type stuff on the bare metal which kept everything great till final paint prep. Used etch primer over it some 5 years later no issues. I believe you can ithe same stuff from Eastwood.

 

[383 240z]

I second the DP-90 type product. I shoot the Omni AU MP172 primer. Thats the black, they also make MP170 (grey) and MP171 (white). Just depends what you topcoat color will be. Keith

 

[vwgtivw]

As close to DP-90 you can get in a rattle can. https://www.duplicolor.com/products/selfEtchingPrimer/

 

[n8n]

does that seal like DP-90 though? If it does I might make that my new go-to.

For non mission critical stuff I usually use rattle can cold galvanizing compound, but I don't know what kind of base that makes for a real paint job later. I've only used it on e.g. spring plates, suspension bits, stuff like that - that gets a coat of semi-gloss Krylon later.