Wyze lock keypad life extension

I have three, going on four, Wyze lock installations across various residences/Airbnbs. The one entryway where the keypad is on the front of the house, out in the open is showing me that the pad needs to be protected. It’s still working but delaminating around the touch pads, and super unsightly. It’s been in service less than a year.
Has anyone else encountered this? Tried anything to extend the life? I am thinking to coat the surface with something, but worried about interfering with the pad sensitivity. Hesitate to take the pad apart while it’s still working. :slight_smile: