E-KeySplint Soft For EnvisionTEC Is A A 3D Printing Resin Ideal For Printing Splints And Night Guards. E-KeySplint Soft For EnvisionTEC Combines The Strength Needed To Protect Teeth With Added Flexibility For Better Patient Comfort For Precise, Strong And Smooth Finished Parts That Are Not Brittle. The Abrasion-resistant Formula Is Easily Polished And Also Easily Cleaned By The Patient. E-KeySplint Soft For EnvisionTEC Is Biocompatible And Is In Compliance With International Medical Device Regulations And Standards. It's Robust Formulation Has Three Years Of Guaranteed Shelf Life While Maintaining Color Stability.