Eastar Copolyester MN058 is a medical grade base with brilliantly clear polymers that have excellent impact strength, chemical resistance, dimensional stability, and low shrinkage rates. It has a relatively high flex modulus and yield strength. This product has high flow characteristics. It does not contain a mold release or ultraviolet stabilizer. Please note that IMCD and Eastman have a medical risk assessment which we will guide you through to make sure to choose the right products for your application, i.e. Eastman products are not intended for use in body implant applications for >30days, any cardiac prosthetic device applications and specific other applications.