So while I was applying my sealer, a drop of sweat fell into the wet panel. I took a second to think about, what to do, then continued sealing the panel. In this case the sweat droplet was in a concealed area under the door panel so I let it flash for an hour and then wiped with wax and grease remover and then shot some more sealer over the spot. Then I finished with base and clear. After I was done I could not tell where it was.

So my question is, if this ever happens again, in paint or clear, what should I do?

The above turned out alright but it was in a spot no one will ever see. Not sure if I would do the same if it was in the middle of a hood.

I don't know what type of W/G remover you used, but I would have used a Water born type.

Are you wearing a painter's suit or sock?

No I wasn't. Next time, and especially when I paint the body, I will be. Live and learn. I think from now on I'm going to prep everything for paint the day before and then get up the next morning when everything, including myself, are clean and paint it then.

You're supposed to wear a hood, not paint it.

Jokes aside, it does happen. I've even had sweat run out of my glove on to the panel. It's a bit of a disaster and usually means re-doing that panel, which is why I wear a paint suit (with a hood).

Doright wrote:I don't know what type of W/G remover you used, but I would have used a Water born type.

It was just basic wax and grease remover.

So in the future, what should I do if something like that happens again? The paint system I'll pretty much stick with will be PPG Shopline and Deltron, all solvent based stuff. I think all I really could do is finish spraying the panel then wait for it to dry to the point I can sand the troubled area out and then refinish it as needed including reshooting the entire panel. Does that sound about right?

Lenny B wrote:

Doright wrote:I don't know what type of W/G remover you used, but I would have used a Water born type.

It was just basic wax and grease remover.

The Problem comes from a Chemical W/G remover wont remove all contaminants not ones made by your body. You need a water born W/G remover to do that.

I can give you a good experiment to prove what I am talking about.
Get a bit dirty and sweaty with dust and what not and sweat on your arms rub it into some light paint on what ever rub it in good now let it dry.
Now take a clean rag and chemical cleaner to it and wipe it. wont come off.
Then try the water born W/G poof gone and yes soap and water would have gotten it too,

Point is to prove a regular chemical W/G remover wont remove all contaminants especially ones made by the human body when you sweat your body makes all kinds of grease and oils in the skin.

Lenny B wrote:So while I was applying my sealer, a drop of sweat fell into the wet panel. I took a second to think about, what to do, then continued sealing the panel. In this case the sweat droplet was in a concealed area under the door panel so I let it flash for an hour and then wiped with wax and grease remover and then shot some more sealer over the spot. Then I finished with base and clear. After I was done I could not tell where it was...

To kind of add to this topic, last weekend while painting with some waterborne PPG Envirobase base coat, I got a couple of small pieces of trash in my base coat. They looked like a small fiber or hair (definitely not mine!), I tried my tweezers and tried to lift it with a razor blade but could not get it out. Not knowing what to do, I shot another coat over it then cleared it.

The waterborne basecoat is a metallic with some pearl in it. It was 95 degrees with low humidity and the BC dried quickly, which was nice.

Couldn't really see it the next day until I sanded the clear coat.

I shoot in the my old pig barn shop, and I try to clean it by blowing it out a couple of days prior and then I usually wet the concrete floor the day of painting.

* After base and prior to clearing, is there something that I should have done?
* How much can I mess with BC prior to clearing? Is it ok to hit it with a tack rag?

immediately stop painting, shut down compressor, clean spray gun, go drink beer till it cools off

PainterDave wrote:immediately stop painting, shut down compressor, clean spray gun, go drink beer till it cools off

I cant!
A) by the time the Pig Barn cools off, it is getting dark and the bugs are in full flight
B) I have limited time windows for my projects
C) I live too far away from PD's "Dream Booth"
D) Now I want a cold beer!