I began the test today of trying to lay 2 layers of water slide decals on top of each other on a box top, it had a nice clean polyurethane top and was handy... :>)
Anyway, I cleaned the top with a little magic eraser and alcohol to prep it.
I trimmed the color decal by basically cutting the outer keyline in half I hope this will allow the top decal to cover the imperfections and white edge when I lay it on top.
The decals I have (Papillio) say to use hot water - so I heated some up and tanked the decal, slid it of the backing and applied it to the top.
I didn't buy any solvent solution but I might consider getting some, not sure what it helps with since the water allows the decal to slide around for positioning. I did buy some setting solution (Micro-Sol), not sure if this is a "Setting" and "Solvent" solution wrapped into a single product...
Anyway, after the application of the decal I had to blot it dry and gently work out some bubbles, then I let it dry. Against all my instincts shortly after the solvent had dried I sprayed a heavy coat of Water based Polyurethane.. see pics. As you can see the keylines didn't print to well on this image but the top decal should cover all of that.
At this point the base coat of polyurethane needs a light sanding due to some dirt, then the real test, the top decal. It will have to wait until the weekend.. the Turkey is calling.
VB,