resin bodies

[gary jackson]

did a search couldnt find anything on the proper way to clean and prepare for paint

[Ace-Garageguy]

Here's a start...

 

[Shark]

Depends on who made the resin parts. If they used a mold release spray, I usually soak them a day in Westley's Bleche White tire cleaner, then scrub with a toothbrush. Some casters say water will reactivate the resin. I haven't had that issue (yet).

I know 3D printing is taking over, but I still like using resin parts.

[bobss396]

I still wash 3D printed parts before prime, etc. I have had issues with primer not covering some recesses in things like wheels. 

A warm water soak with some dishwashing soap is all I do, a little scrub with an old tooth brush too.

[Tom99]

I scrub resin models with dish washing soap, using an old toothbrush. I have never had any paint problems.

[rattle can man]

It's best to check with the maker. Some 3d printers advise against soaking parts.