Fish eyes in cratering in breakthrough 250 - Page 2 - Paint Talk - Professional Painting Contractors Forum
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Old 12-18-2019, 06:20 PM   #21
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Quote:
Originally Posted by Repaint Florida View Post
Here's a link to an post on 10/7/19 https://www.painttalk.com/f2/ppg-bre...n79-1-a-94903/

this primer works great for us , heavy bodied and sand easy. Bonds great only neg is it's not a stain blocker

if your painting doors white this is a must have as we all know white doesn't cover good
Interesting thread, thanks Repaint. I'll have to ask my store about getting a hold of some.
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I had good luck using smart prime on a recent oak job. Tannins bled through the aqua lock like crazy, one coat of smart prime and all tannins gone. As far as adhesion, passed the scratch test, maybe not up to the standards of bin though. Still haven't sprayed much shellac and am hesitant to do it the customer's home, although I hear the smell dissipates quickly.

On a sort of related note I've tried stix on 2 separate occasions, and both times had major fisheye issues. Other primers did not have fisheye on same substrate. So as of now I'm going to skip the stix. Too bad as I've heard some have had good luck with this as a cabinet primer.
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Old 12-24-2019, 09:40 PM   #22
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Most fish eyeing is caused by contamination. However, products molecules are much larger than they were in the past. Many of these products have a minimum tip size of .013 @ 2000 psi. If you overdue it the product will fish eye.
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Old 01-08-2020, 10:05 PM   #23
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I’m in Kansas City and have been spraying a lot of Breakthrough. I experienced the same issue once. That one time was in the shop and I didn’t do enough to remove the particles after sanding/priming and coating. Had to make another pass with 220, then everything laid down fine. Since then, haven’t had any issues with the Breakthrough, but I’d be curious if anybody is thinning this stuff out. It’s already like water.
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Old Today, 12:59 AM   #24
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Well I finally had some time to do some experimenting. I haven't quite figured out the solution, but I've eliminated temperature (substrate/air being too cold) and contamination from smart prime. I'm actually suspecting that the packings on my pump are wearing out, causing fingering even at high levels, (spraying past 3 oclock with 308 fflp). Since this thread is probably dead I think I'll post this in another thread and see what people have to say
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