DIYbanter - View Single Post - Possible to only use part of a can of expanding foam?

DT

In article , says...
Is it possible to only use part of a can of expanding foam for
something, then store the can and use it again later? Is there some
special trick to clearing the exit-hole after the first use so it can
be used a second time?

The official method, which was illustrated in the instruction book that
Great Stuff used to come with (along with a pair of gloves) is simple.
Unscrew the plastic nozzle and pull off the extension tube. Moisten
several toothpicks. Insert one into the can, and one into each end of
the nozzle and extension tube. When the foam dries, the toothpicks will
serve as handles to pull out the hardened plug.

It works well, although the tube is better done with pipe cleaners as
others have mentioned. And acetone from a squirt bottle will remove the
excess if used before it dries, although if you miss a bit in the can,
it will still plug up.

I use flat tothpicks with the larger end inserted into the holes. They
get a better grip than the round toothpicks. Wait a few minutes after
using the foam to insert the toothpicks, or the still-expanding foam
will push them out.

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DT