Joyce,
Allan nailed it..."acetate" is actually cellulose
acetate which is extremely soluble in acetone. Back in
the 1950s they used to make those fuzzy sweaters out
of the stuff...they warned the girls not to wear those
in the chemistry labs. Acetone is common in labs and
is often in squirt bottles...you can imagine some of
the problems...(by the way I was 8 when the 50's
ended...wasn't me!!)
Mark Delaney
--- Allan Fish <[EMAIL PROTECTED]> wrote:
> >Henk, I've been tying some Moser flies, wherein the
> body is wrapped
> >with acetate floss and you touch it with acetone to
> get the chemical
> >reaction thus making the body. I am wondering, just
> exactly what is
> >happening , in simple terms, that causes this
> effect? Inquiring
> >minds want to know. Joyce
>
> Joyce,
>
> I'm not Henk. But what is actually happening is
> that the floss is
> dissolving (at least partially) in the acetone and
> then
> reprecipitated as the acetone rapidly evaporates,
> similar to the
> application of a much more dilute
> solution of head cement, which sets up as the
> solvent dries.
>
> Allan
> --
> Allan Fish
> Greenwood, IN
> [EMAIL PROTECTED]
>
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