[VAL] Re: VAL Digest V1 #150 - Expanding foam for bathtub/shower stall reinforcement

[waymark1@xxxxxxxx]

The trick here is to only partly fill the space with the right amount of
foam, then let it expand to completely fill the space. Experience is
helpful in estimating how much to use. Fill a small area in the center,
then wait for it to finish expanding before you fill the next ring out a
little way, then let it finish expanding. It will expand into the least
resistance as long as it isn't pushing against too much of itself. Take
your time and don't get into a hurry.
I have seen house windows where someone used too much foam and it bowed
the sides of the frame in as it swelled.

Al