[pianotech] Dye for CA

[Greg Graham]

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