As seen in this image below, the cuff checklists have Kapton tape wrapped around their edges. What is the reason for this?
Got an authoritative answer from a coworker who supports the EVA team:
It is because the cuff checklists are actually separate parts. There's the actual flipbook on the wrist, which has rigid pages and the binding that handles the flip, but it's blank.
For each EVA, the crew prints the cuff checklist content on plain old paper using the printer on the ISS, then tapes each printed page to a flipbook page. Kapton tape is used, in large part, because it's what they have available, and it works decently well for the job.