have you seen the stuff being used though? bang and your toilet and bath have gone! my dad's mate at work bought some, spayed it, left it for 2 mins where it had eaten into the metal hinges on the toilet lid, the metal handle of the toilet, scratched the ceramic surface, taken all the mastick off the side of the bath, scratched the surface of that and generally fucked over the whole of the bathroom. look what it did to this old bathroom...bathroom...