WC-85DM is a very rigid, 85 shore D, Mercury and Phthalate free, Water Clear aliphatic polyurethane designed to make clear or tinted castings of all kinds. Its low viscosity with good heat resistance is perfect for a variety of prototype and short run production parts. Its ability to accept pigments ranging from light to dark colors, and color stability when exposed to moderate UV light, make it a great system for a variety of real-world applications. This system responds very well to heated tools for quicker demolds and faster mold turnover. Customer feedback from beta testing trials has been outstanding with this new material. Production turnover times and physical properties for a material like this is very unique in the current market!
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NOTE: WC-85DM is designed to be as user friendly as possible but can be more moisture sensitive than our legacy Water Clear Products. Processing this product successfully can be achieved in several ways. Avoid paper mixing cups and wood stir sticks. Vacuum Degassing and pouring into a warm mold (100-120F/38-49C) will reduce the chance of moisture bubbles and decrease demold times. If you do not have the ability to warm a mold, then Pressure Casting is advised. If casting material and mold at room temperature, vacuum degassing and pressure casting is highly recommended to eliminate bubbles. WC-85DM responds very well to heat curing. Demold times can be dramatically reduced by adding heat which lends itself to production parts compared to the legacy Water Clear products. Pre-heating the mold and curing at 120ºF (49ºC) allows thin walled parts to be demolded as quick as 3-4 Hours while retaining the benefit of a 14-16 minute working time for proper mixing and vacuum degassing.