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Powder coating snafu

jvandyke

Luke Skywalker
Offline
I decided to splurge on my heater box. Brought it to a shop. $45 to blast and coat the box, front and rear covers and the pipe coming in from the blower.
So, 2 months later he finally gives up. The back cover had just enough rust through. I decided to touch up that cover and he agreed to spray it (not powder coat) to match. He tried to JB weld the spot several times but the finish just wouldn't come out. He said it bubbled up several times and he gave it up. Normal body filler won't hold up under the oven temps I guess. So, I was going to just bondo it and he was going to spray it. Now it could possibly be brazed or something (not by me though). I'm wondering about solder? Is that stupid? That would likely melt under the oven temps too though I guess?
So, if solder won't handle it, bondo and spray I guess. I'm a bit disappointed. I could have just rattle canned it myself for next to nothing, that's what I'm ending up with in the end anyway, only it cost me $45 and 2 months (yes, the box is holding me back a bit on reassembly now).
The parts look pretty good but the front cover shows a bit where the surface was pitted. Yep, should have just done it myself with filler skim and sandable primer coats to hide pitting. Oh well.
 
Could you make a new cover using a brake and shear?
 
Dadandson said:
Could you make a new cover using a brake and shear?
I'm sure it'd be easy. Simple plate with an edge few cutouts on the edge. I'm soooo not that worried about it though. I had already sanded and rattle canned it once and it looked fine, but than I pulled it completely for the battery pull (negative earth conversion) and it needed more clean up so I went this route. Fine if you're restoring, silly if you're playing with a daily driver. I really wish I'd just touched it up and spray bombed it. Lab metal much different than JB Weld? I could hunt a can down and try it I guess.
 
I used PC7 PC7 It is cheaper and easier to find locally. Lab metal should be applied in 1/4 layers and allowed to dry between layers for 24 hours.

Paul
 
Only good to 200 degrees though, how hot does a powder coat oven get?
 
400 degrees. PC7 would be used on Rays Steering Wheel.
 
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