On Jan 15, 12:15*pm, "l, not -l" > wrote:
> On 15-Jan-2009, dsi1 > wrote:
>
> > Real close. Casein, which is a protein derived from milk. That's
> > probably why you got yer cow on Elmer's glue. I did not know that casein
> > glues, that's plain old white glue, was waterproof. I like epoxy in this
> > application. *:-)
>
> Once upon a time, casein was used in the making of plastic and has been used
> to make such diverse products as buttons and fountain pens. *While casein is
> somewhat water resistant, prolonged exposure, such as soaking a fountain pen
> barrel for hours to remove accumulated crud, will cause softening, swelling
> and distortion.
> --
> Change Cujo to Juno in email address.

So it's not waterproof, right? Sounds like casein plastic probably
predates bakelite. I like celluloid myself. :-)

I'm no glue expert but epoxy seems about right. Specifically the kind
that one sees on the racks in hardware stores. :-) OTOH, it's a lot
like gluing glass and therefore probably a tricky problem. Maybe one
could use that rear-view mirror glue stuff. They use that to glue a
metal slug to automotive glass windshields - I believe that to be a
type of CA glue. Looks like we'll never know unless someone does the
tests... that's the breaks.