While we are doing the rapid prototyping, we are required to add plating effect to the prototypes. However, not all the materials can be plated. Generally, materials that can be plated are ABS, and of course, parts from vacuum casting can be plated as well. Prototype models made by SLA is not suitable for plating, even you do it, the effect is poor. Details: http://www.kaiao-rprt.com/Technique/electroplating-in-rapid-prototype-model-making.html