Jeff was the closest in the quest for "visible" CA glue. After much searching, all I found was a chemical used by CSI folks to make CA visible in ultraviolet light. You mist it on after the glue is dry. Too much time and $$ for this project, but interesting. I couldn't come up with a source of black CA soon enough. We tear apart the piano in two days. Thanks, Greg > Jeff Deutschle wrote: >Can't wait to hear the results from all of this. Consider using an ultraviolet dye so that the results will be unambiguous. On Mon, Feb 16, 2009 at 11:30 PM, Greg Graham <grahampianos at yahoo.com> wrote: > > 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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