thermal adhesive tape - plant room supplies - made in the U A E

1 full box of 4 rolls - all unopened.

I have tried to research what this stuff is on the Internet & drawn a blank.

Although the box says bands its actually tape - I slipped the wrapping off a roll to check.

I am told its use would have been to wrap up leaks in pipe joints & the like in plant & equipment installations , wrapped &  then activated by either the heat in the plant of with the application of a. hot air gun externally , to seal up as an emergency quick fix.

I have not actually tried it.
its been on the shelf in my workshop for a couple of years unused - time to move it on to someone who may actually use it & find it handy for emergencies.