Brava Elastic Barrier Strips by Coloplast

Are these waterproof? That is, can I use them on my bag's edge when I shower?

Are these the straight strips, curved, or Y shape? Picture on box has all 3 shapes!

I purchased this thinking it was like double stick tape. It's to go around a feeding tube stoma not an ostomy. Anyway to get it to double stick?

Medical adhesive spray by Hollister