AnverRNon-Marking Nomathane.... Non-Marking even in hot conditions. It is a silicone-free hybrid blend which is non-marking and will not leave any residue, mold release agent or ghost-mark on products which need painting after handling. Nomathane is extremely long-wearing, making it ideal for all EOAT applications. Hardness=50-70 Durometer, Temp=-32Deg to +356Deg F, Wearablility= excellent, Oil/Grease = Excellent, UV/Weather= Very Good. Color=Purple.