After the lengthy process to polish the cellulose tortoise binding it was just a matter of carefully taping off the parts of The Crow that would not receive the Duco.
The shop is humidity controlled, but there had been a lot of rain so I had to wait a few days to be sure. The Duco is very environment-sensitive so the temperature and humidity needed to be exactly like it was during my tests.
As the skies cleared and an even thirty-five percent RH was sustained. That’s the golden number—it was time to spray.
First step—tack cloth the entire guitar. This removes any large debris that may have settled on the surface. Then a very thorough blow-down with compressed nitrogen. I also use compressed nitrogen to spray. It doesn’t absorb water, so the spray is completely dry. It’s a little trick I learned from racing cars.
Now the moment of truth is upon us. After months of research, preparation and testing it’s time to pull the trigger. I have to admit that even after making so many guitars over the last thirty-five years, my heart was racing a bit. Now it will have to hang and allow the paint to do its thing. As the solution dries it contracts and creates the “frosted” effect. It takes a few hours to form and dry. Hopefully all my planning will pay off.