SprintRay Die & Model Gray 2 ResinSprintRay Die and Model 2 Gray Rapidly 3D Print Models for Aligner Production SprintRay Die & Model 2 represents a big step forward in dental modelling materials. Our new gray colour offers extremely high colour contrast to help illustrate details. This new resin features almost no pigment settling, which means you can spend more time printing and less time mixing. Improved adhesion to the build plate is matched by an increase in flexural modulus and