Northstar Polymers MPA-A30B Mold-Making Resin

MPA-A30B is a room-temperature-cure liquid castable polyurethane system. This ether-base polyurethane system is used in applications such as mold-making, prototyping, production of cast parts, potting, tool-making, and many other applications. MPA-A30B is designed for an easy operation for industrial applications without special casting or heating equipment. The mixing ratio between part-A (MPC-038) and part-B (PAA-071) is 1:2 by volume. The material is specially formulated to be less moisture sensitive for relatively uncontrolled processing environments. Its low viscosity also makes it easy to achieve replicating the details of the mold/original with a fine resolution. Urethane elastomer parts made of this system exhibit: Fine resolution of mold details Good resiliency and elongation for easy demolding of parts Good cut/tear resistance for its class Good performance in wet environments The suitable applications of MPA-A30B include stamps/patterns and concrete molds designed to transfer a decorative image to wet surfaces. Its property of small shrinkage rate provides users with a tight dimensional stability when a replication is made.Information provided by Northstar Polymers.