Greg: I know this is very short notice about the dye. You may be able to get some from a septic system inspector. Even if it changes the adhesion of the CA, it could still be used to determine the penetration. On Sat, Feb 21, 2009 at 10:41 PM, Greg Graham <grahampianos at yahoo.com> wrote: > 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 > > > -- Regards, Jeff Deutschle Please address replies to the List. Do not E-mail me privately. Thank You.
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