In general smaller bronze sculptures are first modeled in wax.
In the case of larger objects first a frame is built from steel, wood and styrofoam, which is then covered with a layer of plaster or wax and formed into the required shape.
In most cases a silicone mould is then made using this model.
The mould is then filled with liquid wax, that is left to solidify, after which the mould is removed and a casting mould of special sand is made around the wax model that remained behind. This mould is reinforced with a structure on the outside mainly consisting of special plaster.
The whole is then heated up until the wax evaporates, after which molten bronze is poured into the sand mould.
When the bronze has cooled enough, the mould is removed and the bronze shape is touched up, patina applied and finished off with a thin layer of transparent wax.
STONE & WOOD
When using stone or wood one works directly with the final material. All pieces are therefore unique.
The amount of effort needed to produce the end result is strongly dependent on the material that is used: the hardness and consistency are the decisive factors.
The attractiveness of working directly in the final material lies in the possibility for the artist to be led as well by the shapes and lines that nature has left in the stone or the piece of wood as by his own -preconceived- ideas.
In view of the great smoothness that is necessary to cast good concrete, the base model of the sculpture is generally made in clay.
After drying the clay, models are often sanded to achieve a perfect finish.
Then, just like in the case of bronze, a mould is made in which vibrated concrete is poured and left to dry for days.