| MSS-A50E is a room-temperature curable, polyester-based polyurethane casting resin specifically designed for manufacturing oil-resistant components, such as gaskets used in small engine air filters. This formulation is ideal for applications where traditional polyether-based systems are unsuitable due to their tendency to absorb oily substances. MSS-A50E incorporates polar raw materials, providing exceptional resistance to oil absorption. Unlike many polyester-polyol-based materials that are solid at room temperature, both components of MSS-A50E remain liquid at room temperature, making the system easy to handle. Its pot life is long enough to enable the production of small to medium-sized molded parts using manual hand-mixing processes. Yet it provides a reasonable demolding time for a good production cycle rate. MSS-A50E offers a soft yet flexible consistency, along with excellent tensile strength, elongation, and tear resistance. These properties make it an excellent choice for producing oil-resistant gaskets, seals, and other flexible parts. However, the formulation is susceptible to hydrolysis upon prolonged water exposure, leading to material degradation. Therefore, MSS-A50E is not recommended for applications involving frequent or significant contact with water. For such applications, non-polar, polyether-based formulations would be more suitable. Part-A Component: MSE-021 (Prepolymer)
Part-B Component: SNE-025 (Curative) Mixing Ratio: 76: 100 = Part-A: Part-B by Volume (100: 120 by weight) Information provided by Northstar Polymers |
