Crate Gasket

Hello.
Can one of you fine colleagues please tell me a good source for crate gasketing? I'm looking for 3/4 to 1" wide poly/rubber/? material to use on a 60" x60" crate lid.
I feel really stupid because I can't even seem to think of the right name for this stuff. My internet searching has been fruitless.
Thanks in advance.
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McMaster-Carr has a nice selection of neoprene gasket material that works well for crates. http://www.mcmaster.com/#neoprene-foam/=ncyio2

Thanks for the suggestion. I'll look them up.
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