What is the process for painting resin parts this is my first time using them.

I sanded them and trimmed them, now I am lost.

Any help would be greatfull

Happy Modeling

wash the parts with warm soapy water or metholated spirts to remove any mold release agents. Assemble in sections as you would a plastic model then prime first to show any defects. Clean up if necessary any faults then paint in your normal fashion

Assemble whatever needs to be assembled, prime, and then paint as per normal.

There is nothing magical or any different about resin parts than normal styrene parts, other than resin usually gives up better detail, and it is a must to prime.

At least thats what I hear, the paint will stick to a primed surface better than a bare resin surface.

To add to what the others said--look at the resin surface before and after priming. Many resin parts (depends on the manufacturer and/or the size of the piece?) will have tiny air bubbles near the surface. If the primer does not fill them in you may have to use putty, Mr Surfacer, or something else to smooth out the surface.

When sanding resin be sure to do it in a ventilated area and wear a mask! Resin dust is very fine and may cause health problems if inhaled (like anything else other than our planet's clean, pure air).

For Sanding wet the Sandpaper It makes the surface smoother and Reduces the Dust a bit.