Hi thanks for reply yes our cars are old now and parts like these hard to find.
I have not checked part numbers for these yet and if they are still available.
I did see something about the heat staples so had a quick look for the gun and staples, problem I have found with some of these tools is finding spare staples for instance.
Do you have a link to the one you have as it sounds like you have had some good results however the plastic seal fram on mine is shattered and I have found every type of glue, goo and poo in there frome previous attempts by various owners to plug leaks.
On the lookout for a new plastic sealing frame but looks like impossible so maybe one with 1 or 2 cracks can repair.
Thanks again