| Official Luthiers Forum! http://w-ww.luthiersforum.com/forum/ |
|
| Nitro problem http://w-ww.luthiersforum.com/forum/viewtopic.php?f=10123&t=43091 |
Page 1 of 1 |
| Author: | Van Savage [ Sat Mar 29, 2014 8:45 pm ] |
| Post subject: | Nitro problem |
I sprayed amber nitro out of a can and it had a white haze to it. The body painted fine with no problems. This is the headstock I'm working on. I believe it happened because it was raining all day while I sprayed in the garage. Anyone else have this happen? Do I try to sand till the haze is gone or just strip it off and start again? Cheers |
|
| Author: | Dave Livermore [ Sat Mar 29, 2014 9:44 pm ] |
| Post subject: | Re: Nitro problem |
Take Ten deep breaths, then ten more. Repeat until the haze gasses off an you can move forward. Find someplace warm and dry to keep the guitar for a few days. Been there, done that. No need to strip and start over yet. Patience is a virtue. dl |
|
| Author: | theguitarwhisperer [ Sat Mar 29, 2014 10:01 pm ] |
| Post subject: | Re: Nitro problem |
If it's only the most recent coat that hazed, blush eraser will fix it right up. It might clear out on it's own though. |
|
| Author: | Irving [ Wed Apr 16, 2014 11:42 pm ] |
| Post subject: | Re: Nitro problem |
Don't give up on her yet! Spray that baby down with 100% lacquer thinner in an hvlp gun. Don't make it drip with thinner, just spray it on thoroughly like as if your spraying a lacquer coat. If you don't have an hvlp gun and compressor, get a little prevail sprayer. The thinner will soften the finish enough to allow the moisture to escape. I have had success with this a number of times. EDIT Just saw that this is two weeks old. So, for future reference I guess! |
|
| Author: | Glen H [ Thu Apr 17, 2014 9:26 am ] |
| Post subject: | Re: Nitro problem |
Exactly what Irving said. No need for retarders and lacquer washcoats, just spray it with lacquer thinner. If you wait until the humidity drops outside, it will clear up in seconds after spraying the thinner. |
|
| Author: | Chris Pile [ Thu Apr 17, 2014 10:20 am ] |
| Post subject: | Re: Nitro problem |
And next time.... wait until the humidity is below 50%. |
|
| Author: | philosofriend [ Thu Apr 17, 2014 11:40 am ] |
| Post subject: | Re: Nitro problem |
And if the thinner doesn't do it, there is a strong chemical called butyl cellusolve. I get it at a store that specializes in supplies for professional painters. It is called a retarder, but it also helps layers of slightly different finishes bind to each other. It is horrible nasty toxic, only use outdoors. It evaporates slow, and eats into the finish, which sounds bad but it can sometimes release the trapped moisture causing the haze. Mix a little bit with thinner and start with only the flat surfaces which can be set level. The counterperson at the paint store will probably give you other warnings and tips. The sooner you apply this first aid, the better. To avoid haze: From the compressor, run 25 feet of line before a water trap. Don't spray on humid days unless you use a 300 watt halogen light to gently and safely warm up the guitar and the paint gun. You want to keep the guitar, the lacquer and the gun slightly warmer than the air throughout the process. Don't overheat! Use a dessicant dryer in the airline. It has crystals in it that you dry out occaisionally in an oven. |
|
| Page 1 of 1 | All times are UTC - 5 hours |
| Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/ |
|