Bad silicone caulk?

[Larry Spector <lspector@gmail.com>]

I'm trying to seal a shower stall, and applied GE Silicone II caulk
(from a brand new tube) last night. This morning, it's still sticky.
The label claims that it should be non-tacky after 30 minutes. Did I
get bad caulk? If so- what's the best way to get it cleaned up? Will
it cure eventually if I leave it alone?

Thanks,
Larry Spector