I used Minwax polycrylic water based protective finish
You can also get it in spray form, I'd recommend getting either clear satin or clear matt finish so it's not as shiny. I did notice that it will sometimes lift off acrylic paint if you're brushing it on, so I used either the spray version first or used clear, acrylic medium before applying the Minwax. Just keep in mind it's water resistant and not water proof. The apoxie itself however, is very waterproof!
Apoxie is definitely worth trying out! You can also get a 1lb pack if you just want to sample it. For the hides I made I definitely needed the 4lbs!