Large bore heat shrink sleeving

How about the fittings for the soil pipe on toilet pans?

Yes, and you can even get it as a flat sheet with a ziploc connection, rather than as a tube. 3M sell it as part of underground cable jointing kits.

Unfortunately the price is "prohibitive". I imagine this will still be the case for any heatshrink that diameter.

I would suggest the classic gaffer tape.

You can also buy flat sheet with an adhesive join, although I've only used it on 2" water barrel, to stop a minor leak in an airline joint.

Certainly that is my recollection.

I would use self-amalgamating tape over the top of a single wrap of gaffer tape.

Colin Bignell

ok thanks for that

best place for self amalgamating tape? screwfix? or....?

dedics

.. or cable ties?

From: Ian & Hilda Dedic Date: Mon, 20 Sep 2010 Time: 09:22:20

Somewhere like this:

Careful, there are some ladies here as well. B-)

If I read that right you have gaffer tape bridging a 4" wide gap between the outlet of the extractor (cooker hood?) and the inlet to the ducting.

Think the best solution is a short bit of the flexable ducting you can get from the sheds, cable tied to the outlet and the round inlet of the ducting.

Halfords used to sell it, with a reinforcing fabric overlay tape, as a hose repair kit.

Colin Bignell

yes, but I don't think I can get a cable tie around the plastic ducting due to the 90 deg bend into rectangular conduit over the top of the cupboard. The hole is very tight, which is why I thought heat shrink sleeving would be a good move if I could get it.

I'll have to try something with self amalgamating tape (after de-greasing everything so the gaffer tape will stick.A Lovely job for the afternoon)

Thanks for all your suggestions guys.

dedics

B&Q and plenty of others sell flexy aluminum duct in 4" diam .... fit a length of that and seal ends with pvc tape first, then a layer of gaffa tape on top.