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| Preval sprayer https://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=33381 |
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| Author: | ernie [ Wed Aug 31, 2011 11:54 am ] |
| Post subject: | Preval sprayer |
Saw one at the auto shop this morning . Was thinking of spraying small amount of water based poly on uke .If it worked could use it for touchups. What has been your experience?? |
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| Author: | johnparchem [ Wed Aug 31, 2011 12:20 pm ] |
| Post subject: | Re: Preval sprayer |
I tried it with KTM-SV and I got bad results, a splattered inconstant coat. I did not try using it very long, so I cannot say it can not be made to work. |
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| Author: | meddlingfool [ Wed Aug 31, 2011 12:29 pm ] |
| Post subject: | Re: Preval sprayer |
Yeah, hard to get an even coat. But I did manage to successfully finish over a dozen guitars with them before I snapped and got an HVLP. Might not be too bad for a uke... |
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| Author: | B. Howard [ Wed Aug 31, 2011 6:24 pm ] |
| Post subject: | Re: Preval sprayer |
They don't seem to like water based coatings. Work great with lacquers and shellac. I have used them for years for cabinet touch-ups in the field with good results. Will even do high solids varnish if you know how to thin the material out so it will spray without sagging. |
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| Author: | David LaPlante [ Wed Aug 31, 2011 10:26 pm ] |
| Post subject: | Re: Preval sprayer |
I just used one quite successfully to spot finish and overspray an old Martin neck. As per above I used nitrocellulose lacquer. |
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| Author: | Darrel Friesen [ Wed Aug 31, 2011 10:53 pm ] |
| Post subject: | Re: Preval sprayer |
I know many have used them successfully, but my experience quite a few years ago was not good. They tend to spit and don't atomize very well. Granted I didn't try it many times before I broke down and bought a spray unit. This was using nitro. |
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| Author: | theguitarwhisperer [ Thu Sep 01, 2011 2:55 am ] |
| Post subject: | Re: Preval sprayer |
The web site suggests that for water based paints and acrylics, thin at a 3:2 ratio. |
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