I bought the Rescue Tape from the Port Townsend Wooden Boat Show
vendor. I was skeptical but excited after he showed me the o-ring trick. I am a commercial
diver and do underwater repairs
. The genuine Rescue Tape is expensive and 'magic' if used properly. i have used it on underwater steel
that are corroded through. It still fuses
underwater but the trick is overlap and stretch. For an application where you cant get an even surface wrap around, try building the item up with a steel
putty ( epoxy
application, Durabond?) until you have a reasonably smooth continuous surface to wrap, then making sure its very dry and clean, wrap it up with the tape as an extra sealing measure.