Multiple coats of clear

dhutton01

dhutton01

Backyard Hack
I saw a post by a respected painter on Instagram and he was doing 6-7 coats of PPG clear in one session. He said he increases the flash time for each coat by 10 minutes. So 10 minutes first coat, 20 minutes second coat, 30 minutes third coat etc. This means the fourth coat would be at 40 minutes and the fifth coat at 50 minutes. I was under the impression that 45 minutes is when things can go wrong and the clear can pinch up on you. Interested if anyone has done that many coats in one session and what flash times you use between coats.

Thanks,
Don
 
temp/humidity/reducer/activator could all effect it. especially after3 or 4 coats. one winter all i had was very slow and the shop temps were in the 30's. i could keep the booth at 60-70. i pushed out flash times to 45 min. i go by touch not time.
 
I let a lower line of clear set too long in cup before spraying first coat and it wrinkled in several different places on the truck on the second layer of clear.
 
Humor me here please, but if you're doing 6-7 coats of clear wouldn't it be better to stop at the third or fourth coat and sand it flat then add 3-4 more?
 
DanMcG said:
Humor me here please, but if you're doing 6-7 coats of clear wouldn't it be better to stop at the third or fourth coat and sand it flat then add 3-4 more?
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That’s what I would assume but the painter is Freddie Carlson who was the painter at Kindigit when I was there. They apply all their clear in one session and then block it starting at 600. He moves very fast and gets no noticeable wave.

Don
 
AAE said:
If he moves fast then chances are his millage equals 4 coats of a slower painter.
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Its fast but with more passes so I think he gets the same millage. Interesting to watch. I was fascinated. I think doing it that way avoids getting any wave.

Don
 
AAE said:
I mean his 6-7 passes are the same as a 4 coat job, so the timing may be acceptable.
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I mean he gets the same millage per coat. :) He moves faster but more passes per coat. Greater overlap. His 6-7 coats is 6-7 real coats.

www.instagram.com

Freddy Carlson on Instagram: "We(FRC Customs) sprayed the ‘56 Belair for Marc Dunbar over the weekend. We are super stoked about the custom color that we came up with. Excellent job to @ryanpranghofer and @j_squat for absolutely killing it on the b

1,669 likes, 81 comments - carlson.freddyFebruary 28, 2022 on : "We(FRC Customs) sprayed the ‘56 Belair for Marc Dunbar over the weekend. We are super stoked about the custom color that we came up wit..."
www.instagram.com www.instagram.com

www.instagram.com

Freddy Carlson on Instagram: "Quick video of clear coat application this was blocked by @ryanpranghofer using @big_kid_blocks He did an amazing job!!!#bigkidblocks #offthegun #camaro #71camaro #akzonobel #sikkenspaint #sikkensrefinish #hotrod #refi

450 likes, 55 comments - carlson.freddyNovember 9, 2020 on : "Quick video of clear coat application this was blocked by @ryanpranghofer using @big_kid_blocks He did an amazing job!!!#bigkidblocks #..."
www.instagram.com www.instagram.com

Don
 
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dhutton01 said:
I mean he gets the same millage per coat. :) He moves faster but more passes per coat. Greater overlap. His 6-7 coats is 6-7 real coats.

www.instagram.com

Freddy Carlson on Instagram: "We(FRC Customs) sprayed the ‘56 Belair for Marc Dunbar over the weekend. We are super stoked about the custom color that we came up with. Excellent job to @ryanpranghofer and @j_squat for absolutely killing it on the b

1,669 likes, 81 comments - carlson.freddyFebruary 28, 2022 on : "We(FRC Customs) sprayed the ‘56 Belair for Marc Dunbar over the weekend. We are super stoked about the custom color that we came up wit..."
www.instagram.com www.instagram.com

www.instagram.com

Freddy Carlson on Instagram: "Quick video of clear coat application this was blocked by @ryanpranghofer using @big_kid_blocks He did an amazing job!!!#bigkidblocks #offthegun #camaro #71camaro #akzonobel #sikkenspaint #sikkensrefinish #hotrod #refi

450 likes, 55 comments - carlson.freddyNovember 9, 2020 on : "Quick video of clear coat application this was blocked by @ryanpranghofer using @big_kid_blocks He did an amazing job!!!#bigkidblocks #..."
www.instagram.com www.instagram.com

Don
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That is fast.
 
He's spraying fast but roughly the same as I do. To not get urethane wave what he's doing goes against everything I've ever heard about urethane wave. Spraying it slick will get you the wave starting from coat 4 onward. I have my suspicions that he is reducing it quite a bit. Spraying Universal like that mixed 1:1 will give you wave. More millage = more wave. I don't think there is any getting around that.

Jim C has described the technique to lessen urethane wave.

Need some help with urethane wave.

Less material with less overlap will result in orange peel and/or dry spray. Ok, sorry I miss read that!! John
www.spiuserforum.com

I don't like how he stops in the middle of a panel. His technique is not what I'd teach someone trying to learn this. Second video he fans the gun which is a no no, but you can't argue with the results. I'd like to know how much reducer he is using.
AAE said:
Is than an LPH400 with the orange cap?
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In the Insta post he said he is using a Walcom.
 
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If someone is new to this, this is a pretty good demonstration of how to spray. He describes technique well and watch how he holds the gun and maintains good gun discipline. Kosmoski was a good painter.

 
Chris_Hamilton said:
He's spraying fast but roughly the same as I do. To not get urethane wave what he's doing goes against everything I've ever heard about urethane wave. Spraying it slick will get you the wave starting from coat 4 onward. I have my suspicions that he is reducing it quite a bit. Spraying Universal like that mixed 1:1 will give you wave. More millage = more wave. I don't think there is any getting around that.

Jim C has described the technique to lessen urethane wave.

Need some help with urethane wave.

Less material with less overlap will result in orange peel and/or dry spray. Ok, sorry I miss read that!! John
www.spiuserforum.com

I don't like how he stops in the middle of a panel. His technique is not what I'd teach someone trying to learn this. Second video he fans the gun which is a no no, but you can't argue with the results. I'd like to know how much reducer he is using.

In the Insta post he said he is using a Walcom.
Click to expand...
I was waiting for someone to mention the stopping mid-panel technique. But, like the guy said in the video you posted, everyone has their own method. Do whatever works for you. I've perfected the "trip over the hose" method.

I can't argue what gun he has but they're not shiny like the one in the second vid.
 
He seems to use a variety of guns. When I was at Kindigit they used Sata exclusively. He used a 5500 for clear.

Don
 
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