Try one of the spray-on polyurathane foams. You can buy them in small
cannisters and they are easy to texture ( with knives and drill bits) and
come in different densities. You can also mold from a cast if you wish.
Robert
 
 
In article <[log in to unmask]>, exhibiter
<[log in to unmask]> wrote:
 
>      We are preasently building a Mesozoic gallery with many marine
> fossils.  Most of which are in plaster and framed in wood.  after they
> are mounted in the exhibit we are  plastering up to the frame with
> molding plaster (wire mesh underneath) but do not want to cover the
> the screws with such a hard meduim (in the case of removal).  We also
> would like something that is easier to model over a longer period of
> time vs. the molding plaster, which after it set's up it is Set Up.
>      In discussions here we have talked about the use of drywall mud.
> To me it has all the qualities that we're looking for plus a
> consistancy of spreadability that I would like.  Though we do
> not know how it would react to the fossils in a closed environment.
> Does anyone know how safe it is or anyone who has used it or
> have any suggestions/alternatives as to what we can use.
>
> Thanks
> Scott Clarke
> Univ. of Nebr. State  Museum
 
--
Robert O. Dahl <[log in to unmask]>