Just wondering if anyone has tried coating calcium perlite foam pipe insulation sections to form a riser. We had some damaged sections at work that were no longer any good to use. So I bought them home tried using them for a riser but direct flame contact melted out the binder and it fell to bits. It's rated to constant temperature of 1000 deg c with max temperature of 1200 deg c for 2-3 hour duration. It is awesome insulation just doesn't like fire. My thought is mix up some calcium aluminate refractory mortar/cement to coat the inside of the two halves of the insulation. Anyone tried this sort of thing. Since the calcium aluminate sticks to everything ( including the stuff you don't want it to). I was thinking a 15 to 20 mm coat. After curing wire the two halves together and I'll have a nice 600 mm riser for my 4 inch batch box outdoor bath heater. Thoughts criticism and cheeky comments, wanted, appreciated, and returned.
Cheers in advance
Russ the kiwi nutter
Where all the women are strong, all the men are good looking and all the tiny ads are above average: