"Rich S."

Nope - that's not it, Jim. It isn't a caulking material at all. I may have
a receipt for it in my records. Seems to me it was in a red tube and, like
I said, it's almost crystal-clear.

OK, but for the record, there is a clear (very clear) polyurethane caulk,
that is very different is consistency from regular caulk.

I hope you can find what it was. I'm always open to learning about new
stuff!
--
Jim in NC