William Clendenin wrote:
>
> At the Captiva COA convention there was a panel discussion on safe
> storage of shells. Someone listed the safe foams and foams to be
> avoided. I cannot find my notes - can someone enlighten me?
>
> Bill Clendenin
Many materials used with shells release acid. The worst is cotton.  Use
polyesters if possible.    Be sure all materials and plastic boxes are
acid free.
ALTHOR now has the new foam that does not deteriorate.  They are listed
under mollusk.net
Bobbi