On Monday of this week I have used Silicone II caulking on one shower corner wall. It is still tacky to the touch. It is now Wednesday. I noticed the tube expired in 2008. Had the caulking gone bad and therefore causing it the non-drying? Do I need to remove and apply new caulking? If so, after removing how do I get all the joint clean to reapply new caulking. If not, will it eventually dry? I feels oily to the touch as well. Thanks for helping.