"Bob" wrote in message
...
Hello,

Have a shower stall that has some RTV Silicone that was apparently used
in a few spots to seal small cracks. Whoever did it, shouldn't have,
but...

Anyway, as expected, over the years some very light blackish mold has
developed on it. Looks like "mainly" on the surface, and undoubtedly
a bit below also.

Tried several of the normal household cleaners with no luck.

There are zillions more cleaners and products avail., but can't try them
all.

Anyone have any suggestions on what to try, or at least worth a try ?

Really don't want to dig out all the RTV, if I can avoid.

Thanks,
Bob

Watch using bleach, it's corrosive! You don't want to get it on fixtures or
any metal.

I use Softscrub w/bleach at least once a week. I put it on the caulking
areas & rinse it off in about an hour (don't scrub the caulking, just wipe
the Softscrub on). They must have their solution just right, cause it
hasn't damaged any metal.