AA 59588 Class 2A 2B, Grade 40 Silicone is Independently Tested

AA 59588 Class 2A

SSP’s AA 59588 Class 2A 2B, Grade 40 silicone is independently tested and meets the full requirements in A-A-9588.

Specialty Silicone Products (SSP) submitted samples of two 40-durometer military / aerospace silicones to independent ISO 17025 accredited test laboratories. These samples were tested against commercial and military standards. 

  • SSP-220 met the physical and mechanical requirements of A-A-59588, Class 2A and 2B, Grade 40.

  • SSP-267 met MIL-DTL-25988C, Type 2, Class 2, Grade 40 physical requirements.

The following sections describe the products and summarize the test results.

SSP’s AA 59588 Class 2A 2B, Grade 40 silicone

SSP-220 is a 40-durometer (Shore A), peroxide-catalyzed, heat-cured silicone with high temperature resistance and low compression set that meets the physical and mechanical requirements of A-A-59588, Class 2A and 2B, Grade 40. The A-A-59588 standard supersedes ZZ-R-765 and meets SAE-AMS-3301 for general-purpose, 40-durometer silicone rubber. 

SSP submitted a sample of SSP-220 to Smithers Rapra, a global leader in rubber testing. The table below shows how the sample passed the following tests. 

StandardDescriptionTest Result
ASTM D2240Shore A HardnessPass
ASTM D412Properties in Tension for Vulcanized Rubber and Thermoplastic ElastomersPass
ASTM D792Specific GravityPass
ASTM D395Compression SetPass
ASTM D573Heat ResistancePass
ASTM D2137Low Temperature BrittlepointPass
ASTM D471Effects of FluidsPass

Contact SSP for more information.

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