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SSP2521T is a 70-durometer (Shore A) silicone with high tear strength and high flexural strength. This heat-cured silicone compound is black in color and uses a DCLBP peroxide catalyst system.
SSP2521T has been tested to the flex-fatigue requirements in the A-A-59588, Class 3B, Grade 70 specification. The A-A-59588 standard from the U.S. General Services Administration (GSA) contains six alphanumeric classes or sections, but only Classes 3A and 3B include requirements for flex-fatigue resistance.
A-A-59588, Class 3B silicones with high flex-fatigue resistance must pass the DeMattia Flex Resistance Test, a dynamic fatigue test that measures crack growth in inches over thousands of flexural cycles. For certification purposes, SSP performs in-house testing at its Quality Assurance laboratory in Ballston Spa, New York (USA).
SSP2521T silicones are peroxide-cured, a robust technique that’s also cost-effective. Because peroxide cure silicones aren’t inhibited by amines, tin compounds, latex, or urethanes, they’re a good choice for military and aerospace applications. To prevent bloom, SSP post-bakes all peroxide-cured silicones.
SSP2521T silicones are supplied as ready-to-use uncured compounds, compression-molded sheet stock, or continuous rolls. Raw materials are available catalyzed and ready for compression molding and HAV curing.
Download the SSP2521T data sheet for specifications such as tensile strength, elongation percentage, Tear-B, compression set, specific gravity, and low-temperature brittle point. SDS information is available upon request.
