Found My PC Technique Problem Now What?

[Daytony]

I've done "some" powdercoating with my caswell powdercoating gun, I always seem to get a wavey/fish eye kind of apperance. Doesnt look bad but I wanted to improve my technique and get some do's and don'ts from you professionals.

This is how I used to powdercoat.
1. Sandblast the part(s) with FINE glass beads.
2. Wipe with tack cloth really well
3. Shoot PC
4. Bake.

My parts don't come out too bad this way but like I said it CAN improve and I think I've narrowed it down to my prep work (duh) lol

Anyways I see alot of clean after sandblasting with acetone, Is this an excellent way to get rid of nasty oils and contaminants?

Should I preheat the part's before final cleaning with acetone? This is where Im lost, I've never used acetone in my life.

Asking for help for a smooth mirror finish like powder is intended to. Thank's!

[donafams]

yes, clean with acetone

[BottleFed70]

I keep hearing that the glass beads cause a lot of finish problems as the glass can become embedded in the part. Maybe try changing your blasting media?

[baz]

Anyways I see alot of clean after sandblasting with acetone, Is this an excellent way to get rid of nasty oils and contaminants?

can you explain (i see a lot of clean after sandblasting with acetone)?

[chromo]

Yes, clean with acetone before powder coating, it removes finger oils etc... for a clean part.
Many recomend wiping with a clean lint free rag and acetone, some say they spray it on from a squirt bottle.
Run a propane torch over the part to burn off any lint from rags etc... and dries it, just a quick pass don't need to heat the part. Keep flames away from acetone and such, propane on the part should be fine, make sure well ventilated when using it and close and remove can before using an open flame in the area. I think acetone is very flamable.