I have a 4" cast iron waste pipe coming into the basement of a property. It appears to be coated with a woven mesh material which has then been painted. I wondered if anybody had any idea as to what the material could be. I've also come across similar on a 1/2" copper water pipe . Any help gratefully received as looking to bond the pipe subject to further investigation.
Gas Boards used to use Denso tape to wrap leaks a temporary repair. It is made of oil-based mastic and a cotton fibre material. I rather suspect that you are trying to bond things that don't need bonding.
Gas Boards used to use Denso tape to wrap leaks a temporary repair. It is made of oil-based mastic and a cotton fibre material. I rather suspect that you are trying to bond things that don't need bonding.