Powder Coating Problem
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Powder Coating Problem
Posted: February 07 2006 11:00 PM
 
Mitch Samuel (aka crash12888) [ View ] [ crash12888@comcast.net ] [ Car Ads ] [ Blogs ]
Chesterfield, Virginia
(804) 748-3376
 
I powder coated a set of 85 corvette valve covers yesterday with mirror chrome and they turned out nice except for one problem and I know why but not how to fix.. The covers aren't the best quality of casting and I ended up with little air bubbles under the coating because of it. The question is, How do you prep a porous metal to eliminate this happening again or is there any hope for them being coated? By the way, All of the other steel parts and pulleys came out great. Mitch
 
 
Comments
 
Posted by crash12888  -  02/06/2006 10:36 PM
Do you let it cool or coat it hot, cool a little?
crash12888 [ View ] [ Email ] [ Blogs ] [ Car Ads ] Chesterfield, Virginia
 
Posted by crash12888  -  02/06/2006 10:37 PM
Hey Leon, You in the shop tomorrow?
crash12888 [ View ] [ Email ] [ Blogs ] [ Car Ads ] Chesterfield, Virginia
 
Posted by crash12888  -  02/07/2006 11:00 PM
Well, When I powder coated the brackets and pulleys I thought they looked great but that was while they were cooling down in the oven. This morning I put them on the motor and now they are next to the polished aluminium, they look more like shiney silver. Next plan will be to blast them again and run them through a vibradine and try clear coating them.
crash12888 [ View ] [ Email ] [ Blogs ] [ Car Ads ] Chesterfield, Virginia
 
Posted by Billnthemale  -  02/06/2006 07:15 PM
Did the little lady of the house catch you using the oven?
Billnthemale [ View ] [ Email ] [ Blogs ] [ Car Ads ] Chesterfield, Missouri Charter Member since April 2005
 
Posted by crash12888  -  02/06/2006 07:57 PM
naw, I got my own out in the garage, That was one of the first things I read in the coating booklet under "How to get divorce in 3 minutes"
crash12888 [ View ] [ Email ] [ Blogs ] [ Car Ads ] Chesterfield, Virginia
 
Posted by Rods & Customs by Leon  -  02/06/2006 10:34 PM
If its real critical to get them done, You might need spend the dough to have them plated, Thats the only way I can think of.
Rods & Customs by Leon [ View ] [ Email ] [ Blogs ] [ Car Ads ] Highlands, Texas Charter Member since May 2004
 
Posted by bobe3537  -  02/06/2006 09:30 PM
You Gotta preheat aluminum castings for about 30 minutes at 400 degrees to degas them.
bobe3537 [ View ] [ Email ] [ Blogs ] [ Car Ads ] Holland, Michigan
 
Posted by Rods & Customs by Leon  -  02/06/2006 10:58 PM

Yea, I`ll be there.

Rods & Customs by Leon [ View ] [ Email ] [ Blogs ] [ Car Ads ] Highlands, Texas Charter Member since May 2004
 
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