Ive had great experiences with
Envirotex lite. I cost $10 for the 8 oz pack and I just mixed it in a plastic cup and poured it on (after masking the neck with painters tape). A few hours later it was solid and I peeled the tape off ( so the runoff did not harden in place) and it was good to go within a day I believe. Ive wasted my money on lacquers and urethanes when 10 bucks got me a very hard, shiny and reflective finish for my neck. I wanted fretlines, so I went over where the frets were before my defret with a black sharpie. Wish I had pictures to show!