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BONDO must be a dirty word other than the dust it.. Posted by DougM [Email]  (#211)  [Profile/Gallery]
(more from DougM) on Tue, 17 Jun 2003 16:10:19
In Reply to: Nice looking 99 Doug, but what about durability?., Champ, Tue, 17 Jun 2003 13:52:16 Members do not see ads below this line. - Help Keep This Site Online - Signup |
creates...:)
Why do you think car manufactures oven bake the paint jobs on new cars?
Well, paint takes a hell of a long time to cure otherwise. The solvents take months to "breath" out of the paint. That is why body shops don't recommend waxing for months after a re-paint(you'll seal in the solvents and the paint may never harden correctly). In the meantime, before it is totally cured, is where the greatest risk of scratches and chips will happen, while the paint is still soft.
I used partial panels to repair some spots on my current project...75EMS....but what would you use to finish off the weld seam? I used USC duraglas to seal the seam and USC Kromate light to finesse it. Then used urethane primer(catalized) to block the repair area. Before paint, the car will be sealed with epoxy primer(good stuff). Some body shops use self-etching primer, which is equivalent to the e-coat used by car manufactures, but it is very touchy when used around fillers, so I choose to use urethane primer and epoxy primer in its place.
As far as shrinkage or warp of fillers and primer for that matter....cure time is imperative as well as a good mix. Primering over 36 grit scratches is also a no-no. Patience is the key, that's why I drink plenty of beer to help slow me down. Another plus we have going for us is the urethane and epoxy primers which are both catalized and dry super fast(they harden in the gun). In the old days, what did we have to use for primer?....lacquer?...which a bodyman friend of mine said takes 100's of years to totally cure. Which of course means shrinkage.
New technology is amazing, expensive, and more reliable than the old. I also have a few professional bodymen who I hang out and consult with, so they give me pointers on what to use and up-date me. Knowledge is the key when working with new and improved products.
Read my response to Larry for more info on the longevity issue of the blue car.
posted by 68.68.1...
75EMS project...this link may be dead in a few days
, Tue, 17 Jun 2003 09:40:20, Tue, 17 Jun 2003 16:47:12, Tue, 17 Jun 2003 15:39:34, Tue, 17 Jun 2003 16:38:08, Tue, 17 Jun 2003 16:10:19 <-- Viewing This Message
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