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I was actually just reading about Kapton yesterday, and stumbled upon some info about its deterioration being hastened by heat. See https://en.m.wikipedia.org/wiki/Kapton#Characteristics

Kapton tape is also quite expensive and overqualified for this task. I think the engineers will be able to squeeze out a lot cost by using something more “barely-capable”

Cellulose tape?

That would be among the worst choices for tape. Gets damaged above 50C, decomposes above 100C, biodegradable and flammable: https://s3-ap-southeast-2.amazonaws.com/wc-prod-pim/Asset_Do...

Might as well seal it with the yellow adhesive Cyberpower uses on their UPS's which decomposes into flammable and conductive substances.

Kapton tape is polyimide, not polyacrylamide, isn't it?

Thanks you're correct, polyacrylamide is a cool unrelated material.