Universal clear wrinkled

Brandon123

Promoted Users
Hi everyone first time poster. I'm trying to figure out where I went wrong on this fender. It was epoxy primer, basecoat, universal clear. It was painted and cleared 4 days ago looked great til today any ideas?
 

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My guess is something was not mixed right, or catalyst/hardener was bad. It should not be moving around 4 days later. How much time between epoxy and base? How was the epoxy mixed? (1:1, 1:1:1, etc) Which base? Sure you mixed the clear 1:1? Is clear still gummy? More info needed.
 
Clear was mixed 1:1 the epoxy was put down several weeks ago. The Clear was a little gummy until this happened now its pretty hard. The odd thing is that inside the door jam and under the hood this wrinkling didn't happen only where it was exposed.
 
5 to 10 minutes between clear
Medium activator was used

Based and cleared it early in the morning so temp was around 65.

Iv sanded it down and the basecoat isn't wrinkled just the exposed clear. Iv used this base and clear combo in the past with out issues. Just not sure how it could go from looking great to that. It rained most of yesterday thats the only difference that panel has experienced
 
Five to ten minutes between coats of clear? Pretty sure the tech sheet says 30 minutes. You might need to read it next time.

Don
 
I get wrinkling when I don't wait long between coats, because I'm in a rush. I then pay the price by spending even more time to redo everything. So now, no more rushing for me, follow the product instructions.
 
Don I read the tech sheet however I'm new to this medium activator flash time between 3 to 8 minutes. Second coat was probably around 15 minutes later as I was working on other stuff while it set up.

Orange the activator is maybe 2 months old stored it in a cooler area sealed tightly

Crash your right about that it's basically a bed liner at this point.

Iv started sanding it back down to the epoxy to have another go around I dont know if maybe I put it on too wet I guess I'll try 2 dryer coats and wait longer. Any harm using the medium activator when the temperature is starting to rise?
 

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I started smoking in order to keep me from rushing.
This is exactly why I drink tall boys....

But I wanted to jump in because a few days ago I painted my car. Alone. So it took about 15 mins to clear it one coat. Watching the hose. Drying sweat etc. It got me thinking....

Start clearing the roof at noon. Finish the the bumper at 1215. ...does that mean I start the roof at 1245 or does that mean I start the roof at 1230. 30 mons after I started. I know it's probably not a huge deal but it had me wondering. When I was done with bumper I started mixing more and kept going
 
Start clearing the roof at noon. Finish the the bumper at 1215. ...does that mean I start the roof at 1245 or does that mean I start the roof at 1230

Always time it from when you finish spraying. If I start at 12pm and finish spraying my first coat of clear at 12:10 pm then I would spray my second coat at 12:40 pm or thereabouts.

As for the OP's question, I'm in agreement with Jim, almost certainly clear was shot over a still wet base. Only thing that could cause that much shrinkage and die back.
 
Always time it from when you finish spraying. If I start at 12pm and finish spraying my first coat of clear at 12:10 pm then I would spray my second coat at 12:40 pm or thereabouts.

As for the OP's question, I'm in agreement with Jim, almost certainly clear was shot over a still wet base. Only thing that could cause that much shrinkage and die back.
Got it.

But to add my 2 cents. I painted a skate board and slammed 3 coats of production on it within about 12 mins and it didn't have any reactions or wrinkling. Im following this thread because at 4 days later you should be out of the woods
 
Got it.

But to add my 2 cents. I painted a skate board and slammed 3 coats of production on it within about 12 mins and it didn't have any reactions or wrinkling. Im following this thread because at 4 days later you should be out of the woods

Four days later is when dieback and shrinkage occurs as it is drying. To get the kind of massive dieback and shrinkage as seen in the OP's picture he would have had to spray the clear over wet base. Improperly flashed basecoat is the likely reason for the OP's issue.
 
Basecoat tech sheet states to clear after 15 minutes. I'm sure it was atleast 15 if not longer since I had to clean the gun and mix the clear. Any harm in waiting longer say an hour before shooting clear? Like I said I'm new to all of this and trying to learn as much as I can by reading. This was only my second time spraying. I based and cleared a bed that turned out decent didnt experience anything like this during that and it was epoxied, based, and cleared all in a morning
 
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