Dupont Urethane paint

[Wally Choate]

If you plan to do the paint job yourself try taking your car to a auto paint supplier for advice.  I painted a 20 year old motor home this summer with Dupont Urethane single stage urethane.  I wet sanded the fiberglass surface to remove the exposed glass fibers, sprayed on one coat of the recommended primer, and one coat of the urethane for an amazing finish.
They also had the proper epoxy to mend plastic parts on my A8 and tossed in an ounce of scratch and nick paint for the pearl white finish, based on their instrument readings (no pearl but close enough for those near the road chips).
 

I just did this on my 4ktq. Takes a LOT of time and Patience. 
Only way I found that worked was a razor blade and very careful
manipulation. I have a nice scraper razor blade with a handle
that worked great. Corners are a PITA though. YOu WILL Nick
the paint underneath occasionally which means you WILL need to
sand down much of the stock paint underneath but not to the
metal. Genearlly the scrapes just go to primer level. I
sanded, then Primed the entire car with K36 primer. Then
sanded, Primed, sanded Final Prime and it was ready for the
shop. $750 later it had a nice coat of Dupont Urethane Single
Stage paint that is supposed to wear well, maintain gloss well,
and abe a very good single stage. I'm happy but hte project
took about 5 times as long as I had planned.
Good Luck
Todd (I can send pics to anyone who wants them.)
BTW: That 4ktq is FOR SALE as well. I have 2-other projects
that need attention. Paint is only 2 MOnths Old. :-)

--- SJ wrote:
> My 88 5kq has a peeling clear coat, or top coat, whatever its
> called.
> 
> 2 years ago, the coat first formed fine lines . . .like check
> marks or
> crazing. These got longer and wider over time. Then the coat
> between these
> fine lines started peeling. Now I have big areas where the
> coating has
> peeled off. My thumbnail is sufficient to remove the coating.
> It crumbles
> into powder.
> 
> The problem is on the horizontal surfaces. The vertical
> surfaces look ok, no
> peeling paint. I suspect the clear coat is reacting to UV
> rays, regular
> sunlight, etc.
> 
> Is there a method of removing the clear coat without messing
> up the paint
> underneath? I'm afraid of using something that will remove
> both clear coat
> and paint. Now you get into bare metal and experience other
> problems.
> 
> I was thinking of removing the clear coat, fine sand the
> existing paint, and
> repaint the car.
> 
> Do they make paint that does not require a clear coat over it?
> Or, is that
> kind of paint an unobtainium item?
>

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