My shower window, toughened glass, is held by three hinges apparently stuck on with what looks to be a black mastic. The mastic is deteriorating but before I take it all apart and try to refix with something better, what is the magic adhesive of all the many on the shelf, that will do this? Does the stuff auto window repairers use work in this envornment, and can DIYers like me get hold of a small quantity?
Any insights gratefully received.
Peter