@ Bennie, I know you also use silicone, but if memory serves me at all, I think you use some better stuff than the RTV I use, seem to recall that you mentioned something to that effect, perhaps I'm mistaken.
@ Ceasar, Bud, just wait for Bennie to reply wrt the other silicone in question, however if he also uses RTV, then there;s a place in PTA in Lynburn street, called Plastocure, they sell the RTV in 1kg's tubs, but for the life of me cannot remember the price, think it's in the region of R490 (I think, realy cannot remember).