Whats wrong with nail polish?
Nail polish is formulated to stay on your fingernails for a few weeks at the most (and if you have a lot of experience with polish, you know most paint jobs chip after just a few days). It’s not made to last forever, so why would you want to use it on a custom you want to keep or sell? I’ve had a few people point out their success with nail polish on customs, but for every design that holds up for a year or two, I’ve seen dozens that have flaked, peeled, or become sticky. If that’s a chance you want to take, be my guest, but I certainly don’t recommend it. That also goes for using clear polish as a sealant.
