Here from someone who really knew what he was doing:
"Posted by Oscar Gaddy (Member # 38) on November 16, 2003, 12:58 PM:
For some time, I have been using a clear-coat aerosol spray-on lacquer made and sold by Behlens. It is a true cellulose lacquer that you can spray on and have a very uniform coat without bubbles and running with just a little care in application. When you need to redo it, it can easily be removed by merely soaking the parts in acetone. I have been very pleased with it's performance and I use it on all Damascus barrels that I refinish and on some guns that I color caseharden if the owner wants a protective coating.
Whatever you use, I recommend that you completely strip the internal parts and degrease carefully before applying the protective coating. You will then need to lubricate the appropriate parts and places when you reassemble.
Oscar Gaddy"
JC
