I have been using KTM-9 waterbased lacquer on my guitars with good success, but I see now that due to a fire at the factory it is no longer available.
This is a bit of a problem for me because I need to do a repair on a guitar finished with this. My question is, can I use the more readily available nitrocellulous lacquer over top of this water based lacquer? It is a small area repair (a crack), so I'm hoping to get away with it.
Alternatively I could seek out another water based lacquer. Any recommendations there?