Wax - 90% Paraffin wax:
Infiltration with wax predominately utilized when the models intended use is for casting, this will ensure clean burn-out. The model will be dipped into the hot wax infiltrating the model by 3 mm. Model remains fragile, as the wax adds no strength to the model. Note: Model can not be painted after infiltration with wax.
Used to seal and give the model strength. The model is quite rigid. Can be sanded smooth and painted for presentation models.
Polyurethane - Rubber effect:
Model infiltrated with Polyurethane will have flexibility, depending upon geometry, working best with thin wall models.