In addition to the cracking/peeling question, what about the issue of spray sunscreen? We tend to vacation in summer and reapply sunscreen when waiting in line. I wouldn't bother removing my magicband to do this.
Those using acrylic sealer, how do you deal with that? I've read spray on sunscreen reacts with the sealer making the band sticky. I feel this is more of an issue than the potential for cracking around the holes.
Oh no! This is another good question. I want to paint ours, but not if it will be inconvenient for use or worsen the aesthetic.