On Oct 26, 5:04 pm, dbr wrote:
Is there a way to use only part of a can of urethane insulating foam spray, and
save the rest to use later? I find if you don't use it all right away the nozzle
and dispenser tube permanently clog.

When you're done spraying the foam and the can still has some material
left in it, you can unscrew the nozzle and put pipe cleaners in both
ends of the nozzle. Also put a pipe cleaner down the hole the nozzle
was screwed into. After the foam hardens on the pipe cleaners, just
pull them out and the dried foam sticks to them.