You can download these Product Data Sheets for more information: DSM-18420 "ABS"    DSM-9120 "POLY-PRO" Stereolithography (SLA) is a "rapid-prototyping" process which produces a physical, three dimensional model from a 3D CAD file. SLA is fast, allowing prototypes to be made in a matter of Hours. Some Models are used to check form, fit and function, other models are used as a master to create a silicone mold to inject urethane into, to make dupilcates. There are several SLA materials to choose from. click on the links above for material specifications