New Weather Resistant RIM Systems for Automotive Window Encapsulation

RIM encapsulated modular windows are now being used on several vehicles and growth in their use can be predicted. Advantages in glass handling, inven tory control, assembly and appearance propell this growth. One disadvantage that retards this growth, however, is the old problem of weatherability of urethanes, even if they are pigmented. This has necessitated the use of either an in-mold-coating or a post paint as a protective coating for the urethane, adding to the cost of the process.