It's a little strong. Often on the frameless shower systems we use, my installers utilize clear "sweeps" to fill gaps that you don't see.....if it is leaking excessive water, that is not a good thing obviously. Look at the "transluscent bulb seal" in the following link as that is representative of what my local fabricator would use.

http://www.superiorshowerdoors.com/hardware/clear-pvc-seals.html