NERRADTools NTPW260 Pow R Wrap Bandage, Multi-Colour

In total I ordered three of these Nerrad Warp bandages. My objective was to stop a pinhole leak on a one inch diameter lead pipe, operating at mains pressure. I closely followed the instructions, but to no avail. The pipe continues to leak at a reduced 'drip rate'. Despite applying three bandages ( allowing at least one day for hardening of each bandage to occur) it is hopeless for mains pressure pipes. However, I can see it working well on waste pipes, anything that doesn't have mains pressure. I can see that I will have to call in a plumber.