Alpha Reverse Engineering and Design Solutions are one of the leading names that are engaged in rendering SLA Prototyping Services. It is the first and the oldest layer-manufacturing process and continues to produce conceptual models in a few hours or days. Parts made from SLA can quickly be used to make cavities in silicone molds, serve as patterns for investment or plaster castings, and can also be easily painted for form and fit studies. The technique builds three dimensional models from liquid photosensitive polymers that solidify when exposed to ultraviolet light.