tesa Extra Power Extreme Repair Tape - Self-Fusing Repair Tape Made of Silicone for Insulation and Sealing - 2.5 m - Black

Used this as a temporary measure to fix leak. Functional and strong enough to stem a small leak until you have a more permanent fix.

Brilliant self sealing tape for remedial work

Useless. It just moves the leak further up the pipe to the end of the tape.

After a ‘professional’ spa repairman bodged some leaking pipes and fled the scene I used this tape to try and salvage the situation - and 12,500 litres of expensive warm water! At first appeared to not be working but after a while the leaks stopped. I’m unsure if this will be long-lasting but has saved the day. You do need to really stretch the stuff. It responds best if fully extended which seems to help with the bonding / amalgamation. I’d buy it again.

Good

Does the job

If you are looking for a strong flexible silicone tape then this is your first choice, it’s exceptionally good.

For a quick repair works very well easy to use