I have a shower stall that over the years has apparently had some grout
cracks fixed with RTV/Silicone.
As to be expected, I guess, there is some mold on the Silicone.
Seems to be Not on surface, but probably very slightly below the
Silicone surface. I would guess not too deep, but hard to tell.
Have tried all the normal cleaners, and Chlorox; none seem
to penetrate (at all).
Any suggestions as what to try next ?
The Silicone is probably somewhat porous on the surface, and going down
the very small amount where the mold is, so I can't help feeling that
there might be something that would get down there. Is there ?
Really don't want to have to remove the Silicone, if I can avoid it.