Mike,
To the person that suggested Hypafix - I opened the box and it wasn't what I was expecting. I was expecting some kind of plasticy tape and what I found is a material that's like wafer tape. I put a three-inch piece on the top of the wafer to see how well it does. The 5 cm width is perfect - half on your skin and half on the wafer tape. I imagine that this stuff could be used for other things that need to be covered, perhaps with non-stick gauze. I will try this on three sides on my next bag change.
The stoma nurse from home health was here yesterday. She is a minimalist and gave me some great tips for my bag, improving fit and staying on for activity. There are some tabs that insurance covers to help adhesive stay but she recommended this tape which isn't paid for but she finds is great. Its called Hy-Tape pink tape. I swim, kayak and love my hot tub, she said it will extend bag time, prevent bag from losing seal.
https://www.edgepark.com/wound-care/adh ... p/hy120blf
S