I've used silicon caulk for many decades, installing bathrooms, kitchen sinks, gutters, some window and door installs, and yes, occasionally when I've needed to make a hole in my TC. It seems to work fine in all of those applications and holds up well for decades of use. It's only as messy as the installer, as far as I can tell. Sometimes it take a couple extra minutes to remove when setting a new fixture after 20 years in place, but doesn't seem to be a big deal-- I want it to stick and seal, after all. t'm still missing what's to hate.