As I suspected, the nitro guys have an aversion to anything waterbased.
Someday perhaps a finish will come along that will set them free 
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| Water based lacquer over nitro color? http://luthiersforum.com/forum/viewtopic.php?f=10101&t=39065 |
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| Author: | coach [ Tue Jan 22, 2013 6:18 pm ] |
| Post subject: | Water based lacquer over nitro color? |
This may be a silly question, but I have a couple of aerosol cans of color tone spray lacquer colors that I was planning on trying a sunburst finish with, when I started to wonder...can you spray a water based lacquer over this? The cans are nitro based from stewmac, and my finish is Ktm 9. Thx for the feedback in advance. Sean |
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| Author: | Joe Beaver [ Wed Jan 23, 2013 7:49 pm ] |
| Post subject: | Re: Water based lacquer over nitro color? |
Since no one seems to have an answer, let me try. I'd test on a scrap first. Spray the colored nitro, let it dry until no more off gas odor (probably a week or two. Next I would spray half the sample with a de-waxed shellac like zinsser primer sealer. Let that dry and then coat both pieces with the waterbased. I'd bet the shellaced piece will work fine. Good Luck |
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| Author: | coach [ Thu Jan 24, 2013 6:08 am ] |
| Post subject: | Re: Water based lacquer over nitro color? |
Thx Joe, I'll try that. |
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| Author: | Joe Beaver [ Thu Jan 24, 2013 8:07 pm ] |
| Post subject: | Re: Water based lacquer over nitro color? |
As I suspected, the nitro guys have an aversion to anything waterbased. Someday perhaps a finish will come along that will set them free
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| Author: | B. Howard [ Thu Jan 24, 2013 8:59 pm ] |
| Post subject: | Re: Water based lacquer over nitro color? |
Joe Beaver wrote: As I suspected, the nitro guys have an aversion to anything waterbased. Someday perhaps a finish will come along that will set them free Not really so, I have tried a lot of different finishes. Haven't found any that do better than Nitro or FP for guitars. Floors, cabinets, furniture, boats..........are far different items with different needs. I just have no idea if you can run a particular urethane over nitro. For a new finish I would choose one system and use it the whole way through. Adhesion and film bond problems may take a while to manifest, it may fog or peel. The lacquer will still be trying to outgas under the other coating. |
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| Author: | coach [ Thu Jan 24, 2013 9:35 pm ] |
| Post subject: | Re: Water based lacquer over nitro color? |
That's a good point, Brian. I think I will stay with one, water based, and just spend some more money on some dye I can spray with my hvlp gun. I'm getting nervous about using cans anyway. There's no control. Thanks to both of you for replying. Sean |
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