Sticky wrapping is possibly Denso Tape (Denso with an 'S' not a 'Z'!)
Wear gloves when dealing with it. It is the original 'Sticks Like Sh*t' but for a different purpose.
To all you helpful individuals who offered me some help and guidance many thanks; I have now completed the job and thought I ought to post my experience in case it helps anyone else.
Toilet first - after removing the toilet and waste pipe I was presented with a cast iron connector the advice i received here was to cut it back and insert the appropriate connector - I was wary of that as I felt there was a risk of the pipe breaking which would have necessitated complete removal so I bottled it and connected the appropriate connector into the cast iron pipe then coupled it up to the toilet with the appropriate connector. It leaked - not much but enough. Eventually I went to a specialist plumbing outlet and bought a Mccalpine cast to plastic adapter and matching toilet coupler. I installed them - all ok no leaks. these items replaced the B&Q items originally purchased!
Bath - lots of good advice to replace the lead waste pipe and that was what I wanted to do however I could not get at it as it disappeared into a void (downstairs bathroom) and I could not access it without dismantling half the bathroom. In the end I connected the bath trap to a 40mm flexi pipe and connected one end of this into a rubber fernco coupler the other end of the coupler went onto the lead waste pipe. Works a treat.
Again many thanks for all the helpful advice I have learnt a lot from the process and hope anyone else undertaking a similar task finds this helpful.
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