It's a drysuit. If it fails, you may find yourself in a cold and wet situation. I suggest not messing around with unknown materials. Your life could depend on it.
Several years ago I replaced latex ankle gaskets with latex socks I bought from NRS -- http://www.nrs.com/product/2279/nrs-latex-drysock
It didn't say so on the NRS site, but I think mine came with some adhesive and adhesive prep stuff. Maybe I separately ordered these and they just all came in the same box. It was a few years ago and I don't remember. I was very happy with the results.
I don't know enough about these things to tell you that the hazmat boots won't work, but if it was me, I wouldn't fuss around with it. Your results will only be as good as your materials, and if you start with known, quality components, intended for use in a drysuit, I think you will have a better chance of success.
Touring Kayak Paddles
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