I have an old goretex Phoenix Phoxhole bivy. Some of the tape is pretty lose, some has come off, looks like the glue has given up. I'm expecting most of the tape to start loosening now the bag is being used. Looks like the only tape available is the iron-on tape. I can see that being a faff to do well. I wondered whether non-adhesive tape is available or I can glue the iron-on tape using seam glue instead of using an iron. Any suggestions?