Steve B wrote:

Is Good Stuff the best thing to use, or is there a product that does
not expand so much, isn't so tenacious to get off, and seals well?

Great Stuff comes in two versions; one expands more, and the other
expands less. Both of them are hard to clean up.

DAP has a similar product that's water-based. I used it for the first
time a week or two ago, and it cleaned up with a damp rag, even from
brick. Downside: It took a long time to cure, and it cost twice as much
as the Great Stuff.

--
Steve B
New Life Home Improvement
Arlington, TX USA