First time with base clear
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Cargo Master
Joined: Sep 2007
Posts: 2,095
Likes: 2
From: Wahpeton ND
First time with base clear
I am going to be doing some base clear type painting on my 64F100s grille, bumper, and mirrors and was looking for some timps and advice on laying this.
I am not completely virgin with painting. I have shot several pannels and trailers with both acrylic and urathane single stages so I understand basic gun control and the like.
I will be using a basic bottom cup gun. I do not like top cups as the weight on high makes them difficult to control at times. So please do not insist on HVLP as I aint going there.
Mainly I am intrested in surface prep, between coats, guestamate dry times between coats and any other help. I will be using the nason line by dupont and am very, very insistant on using their etch primer as I find it wonderful.
Also, I will be shooting base colors with no metal flake or effect whatsover.
Thanks for any help guys,
I am not completely virgin with painting. I have shot several pannels and trailers with both acrylic and urathane single stages so I understand basic gun control and the like.
I will be using a basic bottom cup gun. I do not like top cups as the weight on high makes them difficult to control at times. So please do not insist on HVLP as I aint going there.
Mainly I am intrested in surface prep, between coats, guestamate dry times between coats and any other help. I will be using the nason line by dupont and am very, very insistant on using their etch primer as I find it wonderful.
Also, I will be shooting base colors with no metal flake or effect whatsover.
Thanks for any help guys,
Hotshot
Joined: Aug 2006
Posts: 10,764
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They tell you not to , But , If it is dry long enough You can .. I have painting over it for 20 or so years with 0 issues ...
Cargo Master
Joined: Jul 2006
Posts: 3,014
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From: Concord, CA
Mainly I am intrested in surface prep, between coats, guestamate dry times between coats and any other help. I will be using the nason line by dupont and am very, very insistant on using their etch primer as I find it wonderful.
Senior User
Joined: Sep 2004
Posts: 192
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From: Grants Pass, Or.
Uhhh, I guess that guy's been doing it for 20 years without a problem. But, almost every single one of the paint maufacturers say absolutely don't do it. I checked Nason on the tech sheets and it says not to do it. I believe the reason is because etch primers are very thin and basecoats are full of solvents. The solvents in the basecoat pull the pigment out of the etch and cause staining in your paint. I've seen people spray white single stage over bondo with red hardener before and you can see exactly where it was. I'm guessing something similar to that. Hopefully that's all that would happen. If it comes off in sheets at the pressure washer then you'll know staining wasn't the reason they told you not to do it!
Thread Starter
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Cargo Master
Joined: Sep 2007
Posts: 2,095
Likes: 2
From: Wahpeton ND
First of all boys my paint supplier recomended that I use a sealer and get full coverage.
P sheets? Should I ask for them?
Nice to see you elsewhere TBM. Always good to see a familiar face.
Please keep it coming.
P sheets? Should I ask for them?
Nice to see you elsewhere TBM. Always good to see a familiar face.
Please keep it coming.
Last edited by flipklos; Jan 6, 2012 at 02:39 AM. Reason: more stuff
Cranky Old Guy
Joined: Mar 2008
Posts: 3,562
Likes: 6
From: Raphine, Virginia
A good paint store prints out the sheets and includes them every purchase. If they don't, ask for them. Due to bad eyes and poor lighting, I have accepted the fact I personally can't shoot clearcoat.
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Senior User
Joined: Sep 2004
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From: Grants Pass, Or.
yep, you should get sheets. they've got all the answers you're looking for and that stuff can vary from brand to brand.
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Hotshot
Joined: Aug 2006
Posts: 10,764
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But, almost every single one of the paint maufacturers say absolutely don't do it. I checked Nason on the tech sheets and it says not to do it. I believe the reason is because etch primers are very thin and basecoats are full of solvents. The solvents in the basecoat pull the pigment out of the etch and cause staining in your paint. I've seen people spray white single stage over bondo with red hardener before and you can see exactly where it was.
In the Lacquer days I used to see bleed through all the time from fillers & red oxide primers...Even after it was sealed (PPG sealer70)
I use it first & last. To uniform a blend because it is thin & light . Then Bake it .
I Can't use it here anymore as of last year . It doesn't pass EPA .. We went 100 % compliant
Hotshot
Joined: Aug 2006
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Likes: 39
What are you using ?..
Cargo Master
Joined: Jul 2006
Posts: 3,014
Likes: 91
From: Concord, CA
An example:
https://buyat.ppg.com/refinishProduc...5-a3e7439ebd2c
Senior User
Joined: Sep 2004
Posts: 192
Likes: 0
From: Grants Pass, Or.
PPG has a great etch primer in their Delfleet line called F4940. It is a non-chrome pigmented etch primer. It actually has a small amount of build to it so you can see it when you're spraying it on.
Hotshot
Joined: Aug 2006
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I have seen that , its kind of spendy though...