Here's a link to a 'medium' thickness black CA, should work to color the 'thin' CA you'll want to use in the tests: http://www.starbond.com/ JD Original post: > I'm preparing a piano for our chapter's "Gross Anatomy" session, and would like to find a dye or universal colorant of some kind for CA glue and for nitrocellulose lacquer. I want to make it easy to see how far CA penetrates the pinblock, and how far lacquer penetrates hammers. > > The lacquer will probably take the universal colorants I already use for shellac tinting, but I'm thinking that would probably turn the CA to stone. I didn't try it yet. > > Any chemists in the house? > > Thanks, > > Greg Graham > > > >
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