| MATERIAL |
ADVANTAGES |
DISADVANTAGES |
| WET CLAY |
Material is
soft; easy to work with
Note: See PLASTER . . . It is easy to make a plaster model
from a wet clay original |
Must be kept
moist.
Armature required.
Loses shape easily; difficult to transport.
Original will be lost.
Plaster wastemold required to produce plaster cast and rubber
mold . . . this means extra cost. |
| DRIED
CLAY |
Material
is soft when wet; easy to work with.
Can be molded when clay has dried. |
Fragile; cracks easily.
Original may be damaged in molding. |
| FIRED
CLAY |
Material
is soft when wet; easy to work with.
Easy to mold.
Model available for future reference. |
Molding may discolour original.
Access to a kiln required. |
| PLASTICINE |
Material
is soft; easy to work with. Does not have to be kept moist.
Can be molded. |
Soft
material; distorts easily. Difficult to transport. Difficult
to mold. Original may be damaged in molding. |
| PLASTER |
Provides ideal model for molding. Retains its shape. Easy
to make from wet clay original. Model available for future
reference. |
Molding
may discolour original. |
| STONE |
Suitable for molding
|
Molding
may discolour original.
Molding compound will penetrate into cracks, crevices, etc.
Original may be damaged in molding. |
| WOOD |
Suitable for molding
Light woods may be cast direct *.
|
Molding
may discolour original.
Original must be sealed with lacquer, varnish or wax.
Original may be damaged in molding.
Original is lost when cast direct*. |
| WAX |
When
cast direct * the cost of rubber mold is avoided.
ARTCAST can make a hollow casting from a solid model if required.
Original wax model can be molded. |
Original is lost when cast
direct*.
If there are any problems in the cast, there is no guide
for repair work, or a mold from which a new wax model can
be made. Therefore, the artist must be prepared to supervise
or carry-out this work.
Original may be damaged in
molding.
|
| STYROFOAM |
Can be cast direct *.
Can be molded.
ARTCAST can make a hollow casting from a solid model if required.
|
Original
is lost when cast direct*.
Original may be damaged in molding.
Easily damaged during handling. |
| WAX
OVER STYROFOAM |
Various
surface textures possibile.
Less wax required when styrofoam core is used.
ARTCAST can make a hollow casting from a solid model if required.
Can be molded.
Can be cast direct *. |
Original is lost when cast direct*. |
| METAL |
Suitable
for molding; but if possible mold before patination. |
Patina
may be damaged: but it is possible to repatinate. |
| *The
original is used for casting without first making a mold. |
