Looking to get a cast aluminum piece powdercoated and it is flat with raised ribs on it. I want the the piece coated black with the ribs being a machined/brushed look. Should I just have it powdercoated then block sand the coating off of the high spots or should they be taped off prior to coating?

 

Just got off the phone a local powdercoater, he said he'd PC the whole part and that I should block sand the raised section to remove the coating. I was worried that it would peel at the edge of where I sand, but he said it wouldn't..... Thoughts?

 

I'm not sure exactly. Dunno why it wouldn't work, but I've wondered the same thing for a while. I've thought about doing that with painted stuff, not powdercoated though. Someone who knows their stuff will be along soon enough...

 

I did it on a part on my buddies 00' Stang. I actually used my Dremel with a small wire wheel on low speed. I guess it all depends on what the part looks like.....pics??

 

it will work like he told you. ive done many many parts like that. even with paint it will work great, as long as your paint is done right and not some cheap crap

 

Powdercoating isn't going to flake off like cheap/poorly prepped paint will. If it does, it wasn't applied right. As long as the coating is quality work, sanding it off will work just fine.

 

Agreed


I would however block it nice and smooth first, so all you will need to do after is work it a lil bit....

 

thanks for the tips guys... got a plan now