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  #11  
Old 03-13-2019, 04:27 PM
kbs2244 kbs2244 is offline
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How does all this compare to the mustard yellow. WW II era, anti-corrosion coating used on airplanes?
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  #12  
Old 03-13-2019, 06:18 PM
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Originally Posted by kbs2244 View Post
How does all this compare to the mustard yellow. WW II era, anti-corrosion coating used on airplanes?
I believe. The issue is, getting the hard get areas, In the corners of his scrollwork, where thick material (i.e.) would be the paint. in order to prevent rust.
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  #13  
Old 03-13-2019, 09:17 PM
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Originally Posted by Walker View Post
Just looking for a little better rust prevention in crevices on ironwork. Everything gets painted, butit is impossible to get paing into the small crevices and tight curls on scrollwork.


That is tough. Been there, tried to do that. Couple years ago, did a job that they wanted powder coated. Sweet, I don’t have to try to paint it, let someone else do it, I thought. A year later, the owner noticed rust stains coming out of the scroll pieces. I was not a happy camper having to uninstall the rails, and ship them back to the powder coater to have him redo them. But, I got paid by the hour to do the work. I think the boss might have lost money in that deal. Come to think about it, have had to have at least 3 different jobs get redone because of the powder coating failing or quality of it. And by two different powder coater companies too. I just don’t like powder coating for rails anymore, because you just can’t touch them up, like you can if you paint them with regular paint.

No matter how hard you try, something with scratch or chip it by the time you get it installed.


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  #14  
Old 03-14-2019, 07:55 AM
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Shade Tree Welder Shade Tree Welder is offline
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Originally Posted by toprecycler View Post
That is tough. Been there, tried to do that. Couple years ago, did a job that they wanted powder coated. Sweet, I don’t have to try to paint it, let someone else do it, I thought. A year later, the owner noticed rust stains coming out of the scroll pieces. I was not a happy camper having to uninstall the rails, and ship them back to the powder coater to have him redo them. But, I got paid by the hour to do the work. I think the boss might have lost money in that deal. Come to think about it, have had to have at least 3 different jobs get redone because of the powder coating failing or quality of it. And by two different powder coater companies too. I just don’t like powder coating for rails anymore, because you just can’t touch them up, like you can if you paint them with regular paint.

No matter how hard you try, something with scratch or chip it by the time you get it installed.


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Powder coat paint sucks...
Lacks adhesion, too brittle.
Poorest performing paint system in automotive testing.

You know why powder coat paint was developed, VOC reduction.

Just like Black Angus beef, shitty beef, but produces more meat for less
input, so they market this shit out of it, just like powder coat paint.
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  #15  
Old 03-14-2019, 08:29 AM
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Originally Posted by Shade Tree Welder View Post
Powder coat paint sucks...
Lacks adhesion, too brittle.
Poorest performing paint system in automotive testing.

You know why powder coat paint was developed, VOC reduction.

Just like Black Angus beef, shitty beef, but produces more meat for less
input, so they market this shit out of it, just like powder coat paint.
Dang, Ron. burst my bubble why don't ya!
I'm very fond of "Black Angus Beef" I don't recall any of it tasting like shit

honestly, sometimes it is very expensive to buy, and other times it is cheap over the cost of other normal cow flesh and that's when I try to stock up on as much as I can when it is cheaper, especially the tomahawk steaks and the ribeye's

But, then again. I never tried it powder coated, might give it a whole new meaning to, cooking your meat...
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  #16  
Old 03-14-2019, 03:38 PM
kbs2244 kbs2244 is offline
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Do some research on electro-static painting.

The spray bends around corners and into joints.

I think that it is how the auto production lines do it.
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  #17  
Old 03-14-2019, 06:04 PM
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Originally Posted by kbs2244 View Post
Do some research on electro-static painting.

The spray bends around corners and into joints.

I think that it is how the auto production lines do it.
Automotive does e-coat, it different that electro-static painting, that is
the primer layer and gets in all the cracks etc. Then they wet paint (spray)
color and then wet paint (spray) the clear coat.
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  #18  
Old 03-18-2019, 07:04 AM
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Wolfram Wolfram is offline
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How does all this compare to the mustard yellow. WW II era, anti-corrosion coating used on airplanes?
Zinc chromate? I think you can go to jail nowdays merely for uttering its name!
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  #19  
Old 03-23-2019, 02:25 AM
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Zinc chromate? I think you can go to jail nowdays merely for uttering its name!
Still being used apparently. I was using it 20 years ago (with respirator) in my yacht fixing days. Think it was 3M brand. Everything Al that got painted got ZnCr splashed on first.
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  #20  
Old 03-31-2019, 09:54 PM
Steeveedee Steeveedee is offline
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Originally Posted by kbs2244 View Post
How does all this compare to the mustard yellow. WW II era, anti-corrosion coating used on airplanes?
Alodyne is one brand name. It is chromic acid, and still used in the aircraft and spacecraft industries. Toxic as all get-out because of the chromium, but we used it all the time on aluminum components. You can buy it from a lot of different suppliers.
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