Prep for powder coating

[Crosley.In.AZ]

As I understand it , the parts must be clean , blasted?

The blasting media is usually an abrasive that does not leave little bits in the metal?

Is there a preferred blasting media for metal that will be powder coated? Low dust , fine grit?

I am thinking of getting a  powder coat setup and start in on some Crosley suspension parts.

[enjenjo]

I blast with Black Beauty if I'm paying for it, aluminum oxide if it's free. not much dust with either.

[Bib_Overalls]

For brake backing plates and similar items I also use Black Beauty.  About $10 a bag here.  

For smaller items I glass bead.

[EMSjunkie]

I used glass beads on my stuff.
the powder coating dude said it would be fine.
they run their parts thru some kinda wash and preheat before coating.


just my experience.  


Vance

[Jbird]

I use glass bead if I want a real fine finish. Sometimes it getsa little dusty if you're blasting rusty parts. I usually wash the parts with Simple Green and a brush or scotch brite, rinse really good then dry right away with compressed air and heat.  Be careful when you start powder coating, some people lose control.

When I do any powder coating I always end up with a layer of overspray powder on my powder coating table. I don't want to throw it away and I'm afraid of contamination if I mix it back with the new powder. So I use a new clean paint brush and sweep the overspray into some extra powder cups. I don't try too hard to segregate the colors so I end up with some real interesting mixtures. My new old truck has six or eight different colors baked onto various components. The cool thing is, every time I do a powder coating job one of my special colors gets enhanced.

[donnie g]

i usually wipe the part down with solvent then dry it in the oven @380#
or so to get rid of any trace oils etc in the pores of the metal,and apply the coating with the metal a least at 150 degrees!