Originally Posted by
unworthy1
the kneeling garden pads are "ensolite" a closed cell foam that can be made from (at least) 3 different compositions: EPDM, Neoprene, or a combo of PVC/NBR/CR(code for vinyl, nitrile and neoprene).
Common yellow foam is PU (polyurethane) and so is the so-called "memory foam" it's just a lot denser PU with perhaps some modifiers, and it's generally OPEN cell foam.
The liquid stuff you pour into a form to make a self-skinned foam solid is also PU,
AFAIK, but there may be others...
OMG that's a log acronyms! FWIW, IMO, it's better to have TMI than not enough. KWIM?
Thanks Un but I might not be Worthy of understanding lots of this but I might try pouring my own and might drop some of these acronyms and an open/closed comment at my plastics guy.