Hand Tools Archive

Subject:
Re: times change - urushi
Response To:
times change - urushi ()

Rum
Note that the polymerizing part of traditional cashew lacquer is also urushiol. This is why you can't buy entirely raw cashews, they can have enough of the annoying stuff to cause some people to react, but with heat and moisture it cures out. The bottom of the cashew apple where the nut is is basically a little sack of urushoil resin (a smidge less pure than the urushi plant but much moreso than say poison ivy).

It's also in Mango sap FYI, some people will break out horribly from handling them, moreso if they're green.

I have no idea how the lacquer you have is made/treated so it might be treated to remove the reactivity.. I believe some types are/were not but ?most? are I believe at least air curing (assuming sufficiently thinned coats perhaps?). But I might exercise some caution to ensure that it is adequately cured before handing it off to the less fortunate or indeed shaking their hands after you've been finger painting it on :) You might also appreciate that sensitivity can be acquired, so enjoy your lack of suffering while it endures :)

Messages In This Thread

First successful (sort of) Pencil
Re: Ducking and Running *LINK*
BCTW and kleptocrats
Re: BCTW and kleptocrats
The thread diverged, there...
Convincing advertising
$594!!!!
A few more...
Re: A few more...
Re: A few more...
Re: A few more...
(I can almost guarantee)
Re: A few more...
Re: one more - shellac french polish
6 facets on a pencil instead of 8
6 facets is better, but harder
if anyone is secretly making pencils...
My Port Orford cedar has arrived
Re: 6 facets on a pencil instead of 8
Re: 6 facets on a pencil instead of 8
Shellac
Water or Alcohol
Re: one more - shellac french polish
knife sharpening, to chisel sharpening
Re: knife sharpening, to chisel sharpening
Re: knife sharpening, to chisel sharpening
Re: one more - shellac french polish
Pencil Two - Octagonal
Re: Pencil Two - Octagonal
Re: Pencil Two - Octagonal
Re: Pencil Two - Octagonal
times change - urushi
Re: times change - urushi
Re: times change - urushi
Re: times change - urushi
urushi is related to poison oak and others *LINK*
Re: urushi is related to poison oak and others
Sensitization
Re: Sensitization
Re: First successful (sort of) Pencil
Re: First successful (sort of) Pencil
Great recommendation on the book..
By page 62 in petroski's text..
Re: Great recommendation on the book..
Re: First successful (sort of) Pencil
Re: First successful (sort of) Pencil *LINK*
Re: First successful (sort of) Pencil
Re: First successful (sort of) Pencil *PIC*
Re: First successful (sort of) Pencil
Re: First successful (sort of) Pencil
Re: First successful (sort of) Pencil
Or, there are circular pencils
Re: Or, there are circular pencils
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