MECHANICAL EVALUATION OF A SOFT CAST MATERIAL

In this study, the structural and material properties of a new semi-ri gid material, Scotchcast SoftCast (SCS), were compared to the properti es of two rigid materials, plaster of paris (POP) and Scotchcast Plus (SCP). Cylinders and flat beams made from 4, 6, 8, and 10 layers of ea ch casting material were tested in three-point bending and diametrical compression. Initial stiffness and yield force values of SCS casts we re significantly lower than for casts of SCP and POP made of the same number of layers. Casts made from SCS may be indicated for non-rigid a pplications, but not where rigid immobilization is required.