found something on thinning urushi lacquer using pure turpentine or oil of camphor, and found a company that sells 100g of the lacquer for $41 including shipping from Amazon, or the apparently exact same product on eBay for $105 plus shipping.
either way beats the $515 plus $145 shipping for a single mg of 99% pure urushiol, if one just wishes to test his own reaction to the stuff neutralized with different household chemicals (or crabmeat!).
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last updated 2014-08-21 05:21:18. served from tektonic.jcomeau.com