| Re: [GMCnet] paint sticking problem ??? [message #163864 is a reply to message #163836] |
Thu, 22 March 2012 13:18   |
Luvn737s
Messages: 1106
Registered: June 2007
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| Larry C wrote on Thu, 22 March 2012 07:41 |
The American POR may well have a product that would be suitable
If you are referring to POR15, on steel that is some amazing stuff.
It is supposed to adhere to most anything metal.
In some cases they say to use a cleaner then a metal prep with POR15 next. It is pretty amazing, POR15 does not like to come off, and it especially likes to attach to skin. And clothes, forget it.
When I did my window frames, I recall fine sanding them then spraying Rustoleum on. My frames had all the OEM black worn away, the windows looked silver and of course I had the curse of the PO Silicone Sealant cure. (  ) But once I had the Silicone Sealant off and it was rough sanded, the paint went on easily and has been there since 2007 with very little problems. I haven't tried to dig my fingernail into the paint since I didn't think it would ever see that kind of treatment but I was once told that to test a good spray paint job to use your finger nail and apply pressure and run over the paint. A good paint job will not flake. I TOOK THEIR WORD FOR IT.
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I would be very hesitant about using POR15 on this. First, it has no UV protectant so it could change color. Plus it comes out of the can pretty thin and wicks into places you may not want and then is a bear to remove (if even possible). It could run down and block your window drains, leading to another problem.
I am still fighting this battle. I tried the SEM with a full prep job taking my time and it still failed.
This was a Service Letter GM came out with in the early production run, so it's not a new problem.
Maybe you strip them and polish with Flitz or Met-All to a mirror finish. But don't clear coat them afterward unless you need a reminder for the definition of insanity!
Randy
1973 26' Painted Desert
Ahwatukee (Phoenix) AZ
[Updated on: Thu, 22 March 2012 13:19] Report message to a moderator |
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