Ok I think we have a winner.. The fireplace repair seems to be working great.. It really does solidify like concrete, and it glowed a bit when I put the blue flame to it out of my torch, there were no fumes to speak of, and the wire is solid in the top.. The piece on the glass that u see under the top has solidified to the glass like it was part of it. With some scraping of my fingernail it did come off, but the stuff on top, when I tried to pull it off would not budge....one tub will last a lifetime... Lol
I can send out 4-5 packages of it wrapped in foil then wrap in plastic if anyone wants to try some...and I can
throw in a few DIY gloves for really making it look professional.. I just tooth picked that stuff on.
Oh and I had to really squeeze it between between my fingers and twist it hard to get any crumbs and it was very little