In article , VisionSet
writes

On this page:

http://www.toolstation.com/search.html?searchstr=foam

is expanding foam that lists along with it 'expanding foam gun' at 3.33GBP:

http://www.toolstation.com/messages....7912&mainWin=1

Then there is an applicator gun at 9.90GBP

1/ What's the difference?
2/ How do you reuse this stuff? In the past I've had DIY stuff in an aerosol
can from a shed a/ expensive b/ seemingly impossible to reuse after the
first use. How does this product above differ from the DIY one?

You might find the info here of use:

http://www.absealantsltd.com/Fomo_More_Info.htm
--
Mr X