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| VaccaRabite |
Aug 19 2007, 09:49 PM
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#1
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En Garde! ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Admin Posts: 13,845 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region
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Okay.
So today I repainted my trunk panels. When I painted them the first time I got these little voids. I thought that they were solvent pops at first. Now I am not so sure, cause I got them again when I re-painted. Symptom: Small crater in the paint, the largest being 1/32' in diameter, most of them are smaller. They are nearly perfect circles. No paint seems to want to exist there. When I got them the first time, these were the corrective actions that I took: 1) I sanded out all the imperfections - wet sand, back down to primer with 400 grit paper. 2) re-shot sandable primer (primer seemed to adhere fine) 3) sanded primer with 400 grit paper till baby butt smooth. 4) cleaned with Eastwood Pre (wax and grease remover) 5) gently wiped down with a fresh tack cloth. The really tiny ones were filled in with a heavy coat of paint, but there is still a tiny, but visible, depression in the paint. Whatever it is, it seems like it repels the paint. Most of them seem to be on the targa top, but I have a few of them in the front hood and one on one of the headlamp covers. I'm stumped. What the heck am I dealing with here? Where ever one of these little voids is, you can see clear down to the primer. My best guess is overspray of some sort of oil or lubricant or something, but I did not spray anything but paint since I sanded and cleaned the panels. I'd like to get them fixed. Zach |
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| eeyore |
Aug 20 2007, 12:25 AM
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#2
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Senior Member ![]() ![]() ![]() Group: Members Posts: 889 Joined: 8-January 04 From: meridian, id Member No.: 1,533 Region Association: None |
Fish eye preventer is good. Clean with a compatible purpose cleaner (like DX-33?). Some people say its just PPG's way of making money by selling normal laquer thinner for 3x more in a blue and white can. However, I'd take the safe bet, rather that risk sanding out fisheyes.
You can also alter your technique. Before I lay down a full layer of paint, I like to mist on a few quick tack coats and let them dry a bit. The theory being that all those little spots serve as little anchors to counteract the surface tension in the paint. |
| Spoke |
Aug 20 2007, 06:53 AM
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#3
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Jerry ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 7,370 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None
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Before I lay down a full layer of paint, I like to mist on a few quick tack coats and let them dry a bit. The theory being that all those little spots serve as little anchors to counteract the surface tension in the paint. (IMG:style_emoticons/default/agree.gif) I usually try to do this too for the same reason. I'm not a paint expert but if paint is going to move away from an impurity, it can't move if it isn't thick enough to flow. I just got a few similar tack cloth issues while painting fenders last night. I have one little swipe mark and a couple of small fish eyes. I did not lay down any tack coats. I'm going to rattle can paint my targa top and I've used Armor-all many times on it. Guess I'll need some heavy degreasing before painting. Good luck, Spoke |
Vacca Rabite Paint question Aug 19 2007, 09:49 PM
Lawrence Try these links:
This PDF file has images:
PPG T... Aug 19 2007, 09:56 PM
slim72914 I believe they call these fish eyes. PPG makes an ... Aug 19 2007, 10:07 PM
jasons Yeah Fish Eyes. Your either getting contaminates ... Aug 19 2007, 10:28 PM
thomasotten Grease. Some sort of contaminant. I got them whe... Aug 19 2007, 10:35 PM
John From your description, it sounds like these blemis... Aug 19 2007, 10:44 PM
Lawrence I thought the description was a little vague.
P... Aug 19 2007, 10:50 PM
sww914 You need to be sure of several things;
1. You clea... Aug 19 2007, 10:55 PM
Dr Evil The car is slowly rejecting that gay color :poke:
... Aug 19 2007, 11:02 PM
1bad914 If they are in the same spot you have a dirty surf... Aug 20 2007, 05:58 AM
Vacca Rabite As far as line driers, I have a fliter and water t... Aug 20 2007, 07:25 AM![]() ![]() |
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