in my opinion yes it does.. but doesn't allow heat to dissipate outside the wrap.. which in the long run will probably crack up your pipes or the welds.. im pretty sure alot of people will have different opinion on this but like i said.. it's my opinion..
and what i think a good combination is..
ceramic coating + double walled heat shield(about 5mm apart and one with vent holes or slits) a bit thick but it should do the job well.. right?!
Heat wrap does make the pipe deteriorate- its a cheap short term fix. Ceramic coat it, you'll be surprised with the results
