Ok, so I am working on my Bonanza MX build and I am going yellow and black. I bought duplicolor engine enamel in yellow which I am currently applying to the front forks. I turned out beautiful except for the spot that I had the rope tied on from hanging it. So I had to touch it up and went back over it rather lightly in order to fill in the spot, well then I noticed that the paint that I sprayed on for touch up (from same can) was wrinkling up about 20 seconds after it was applied. I had this happen when I was painting the swingarm black as well. It would be beautiful on the first application, then I would go back over it, it wrinkled up and looked awful. Is this a timing thing? What am I doing wrong? Why does it seem to do that?
Thanks GTO, I appreciate the obvious. The thing is, I have never ever sanded when spray painting between coats. I have never stayed within the one hour respray time and had any issues either. For example, I initially sprayed last night. This morning when I woke up I reapplied some spots with absolutely no issues. For whatever reason, I did tonight and then I did, it was no different than what I had done between last night and this morning. Ah well, I'll just stick to what the can says from now on. It is still puzzling however as to why I have never had this issue before, what could have changed?
This isn't just a Duplicolor thing. The same rule applies to most enamels.It happens with acrylic and urethane car paints too. Sometimes you can recoat without a problem, but most times not. Moisture on surface, metal temperature changing,humidity will all play a role in what happens on the recoat. Better to have it happen on small parts, than on a car hood or other large item. The best bet is to follow the directions on the can.
That problem is very common, it happens most often if the paint is only partially cured and you reapply another coat the solvents react to the first coat and will lift the paint (wrinkle)...I've had that happen several times over the years, I've had it happen to paint that was weeks even years old, it's a crap shoot whenever using rattle cans and recoating since they don't have add in activators to cure the paint, one time you'll have great results and the next time nothing but trouble..
