Quote:
Originally Posted by VintagePC
If the PVA is indeed polyvinyl alcohol "PVA", then water solubility is really the only way to go. It essentially turns gummy after a while. If you can get some water circulation going it would certainly speed up the process. (a small aquarium pump directed at the PVA might help).
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It's actually of the family of Polyvinyl Acetates - kinda like fancy elmers or wood glue.
Later they used polyepoxides - no cutting through that stuff! Patent 3,265,234 from Union Carbide spelled the death of PVA resins, I imagine.
Cheers,