Clearing bare copper
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I have some copper weather vanes that i want to keep from turning green. whats the best type of finish to put over them that will stick and keep them looking nice
Never tried before but I know there is a direct to metal hardener for UNO singlestage paint, I’d have to think it to work in DC92 or any other BASF clear using DH46 hardeners. Don’t know how Copper differs from steel in that sense though.
jimmo, thats a very good idea. never really thought of that. i wonder if it etches or dulls polished metals though? i always use alsa’s clear 4 chrome as it was meant for bare polished metals. i have done polished copper with it before and it turns out great with super durability. the stuff holds better to shiny surfaces than powdercoating. it would be interesting to try the dtm hardener in the dc92 though. that may work really well.
I’ve never used it before but that was my first thought when I seen it available, direct to metal clear. I never looked into it, maybe I’ll ask my rep tommorow and see if he knows.
PPG has a product for this. It is kinda like Dupont 222S. It is some sort of adhesion promoter that can go over bare metal and be cleared. I will look tomorrow and find out the product number. I was just told about it a week ago.
Thanks uys. I thought it was bare copper but I had the kid clean the stuff up today and it looks like they had put some coatin on it already. probably a relative of mine cause i saw a run in one of the things :whistle: . guess if I do anything it will be some nice spray can clear :blush:
For future reference I just contact my rep about the UNO Dtm hardener and he say’s its a no go. He tells me that he wondered himself and did an experiment and in a simulated lab test it started to peel up after 6 months. I’ve contacted a very knowledgeable chemist at BASF (Hans Kempf) to see if he can explain what is happening. He usually gets back to me after a few weeks or so.
I’d scotchbrite it and clear it myself.
I bet I’ve cleared 20-30 aluminum toolboxes an dogboxes for guys over the years, never had a single one peel……. yet. :whistle:
This thing has been cleared for 12 years now. always outdoors.
[IMG]http://i29.photobucket.com/albums/c297/bloverby/toolbox1.jpg[/IMG]sure but you prepped it with scotchbrite…. nothing wrong with that. problem is clearing chrome or polished metals. really cant go wrong with the clear 4 chrome. its dynamite for that.
What’s the harm in a few light scotchbrite marks on a weathervane that sits on the roof?
We aren’t talking about clearing highly polished valve covers here……
If the goal is to make clear stick to it to keep it from weathering?,,,, the process I used on that aluminum box works,,,,, can’t imagine the results on copper would differ all that much,,,
ha, you’ll have to excuse me and my poor memory. no, i dont think there is any problem with that at all. you’ll never see the scratches. the thread was started so long ago i forgot what the original thing was that he was clearing. for some reason i was thinking we were talking about polished metal that you would not want to dull out.
[b]bloverby wrote:[/b]
[quote]What’s the harm in a few light scotchbrite marks on a weathervane that sits on the roof?[/quote]
Well Because its my weathervane :chair :whistle:[quote][b]ding wrote:[/b]
Well Because its my weathervane :chair :whistle:[/quote]:lol1
Prima donna. :wak
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