Neoprene isolation?

When I see neoprene on some of John's designs.....(mostly for isolating plates/studs etc) Would something like this be suitable as a budget solution? https://www.amazon.com/Sponge-Neoprene- ... rene+1%2F2 Or am I way off here?

Here's one answer on that: http://forum.studiotips.com/viewtopic.php?f=1&t=2827 - Stuart -