Join Date: Oct 2009
Location: far east north corner of Texas
Well, can I get my I-am-a-BIG-dummy award or trophy now? Good grief, LOL.
I re-sprayed my rear quarter extensions today. They came out beautiful. It is a bit weird standing there watching this stuff go through its transformation from wet to dry. So I was about out of urethane in the paint pot so I mixed up enough more to spray my fiber glass bumper which was also smoothed out, primed and ready to spray. Well for whatever reason I don't even know, I added in a small amount of slow reducer to the mix. Couldn't hurt anything right?
Well, adding reducer was a really BAD IDEA and I didn't put a lot in but it appears it was still too much. The reducer thinned the mix too much and I now have a run 2 feet long across one side of the bumper. The rest of the bumper is like black glass, absolutely beautiful, but I will be sanding it again over the next day or 2 for another do over. I think I am now understanding that with the temp in the mid 80's, the standard 3 to 1 mix for the paint was thin enough already. The reducer made it too thin regardless of the fact I was spraying the slow stuff.
So tonight I fished around online and found a website, 7 common paint mistakes. #1 cause of runs, sags and curtains? Improper reducer or too much reducer. I can't be totally sure because the others listed are excessive thickness of the film, insufficient flash time, inadequate air pressure, poor technique. I qualify for at least 2 of those also probably.
Considering the price of this material, I have wasted a fair amount of money and still learning everything the hardest way possible.
65 2+2, 331, C4 presently apart for complete a restore
1979 Ford F150 custom, 302, C4, AC, tilt wheel, main transportation
Last edited by macstang; 06-17-2019 at 11:36 PM.