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bmwjoe 11-28-14 12:25 PM

Paint over powder coat
 
Hi,

I am repainting a lugged steel frame. I want to powder coat it, but I also would like to paint the lugs a contrasting color. Any suggestions on how to do this?

Ride Safe,

Joe

Rollfast 11-28-14 01:41 PM

Remove them and do both separately?

That would seems to be a hassle though, it not really impractical.

Why do you want them a different color?

fietsbob 11-28-14 03:06 PM

A good Powder coating specialist may be able to lay down the 2 colors in separate steps and either 1 or 2 heating steps
Cloisonné is an old technique for laying down 2 colors Cloisonné - Wikipedia, the free encyclopedia

It involves a little wall surrounding the separate color area..


There may be also a Powder with a much Higher melting Point.., It could be applied first ,say your lugs,

then masked off and the main color applied, of a lower melting point then It brought up to it's melting point ..

(Jewelers use Silver solders of various Melting points to make sub portions and then attach them with a softer solder. )


all else seek out the folks doing the work and ask..

Spectrum In Colorado has been mentioned as a top company.

bmwjoe 11-28-14 10:31 PM


Originally Posted by Rollfast (Post 17346605)
Remove them and do both separately?

That would seems to be a hassle though, it not really impractical.

Why do you want them a different color?

I have seen many, many bikes painted with contrasting lugs. I think it may look nice on this bike.

Joe

repechage 11-28-14 11:21 PM

Some processes are just not that compatible.
Not impossible, but your needing to ask suggests what you don't know will foil you.
Wet paint.

02Giant 11-29-14 01:10 AM

Mask the lugs and powder the remainder, mask the powder and paint the lugs.

busdriver1959 11-29-14 07:14 AM

I've sprayed Duplicolor clear over a powdercoat sample tile. Duplicolor is lacquer based and didn't cause any of the coating underneath to wrinkle or react in any other undesirable way. I can't comment on the durability though, since I haven't tried it on a frame.


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