Jun, 17 2019

Military / Aerospace Silicones Pass Independent Testing



Military / Aerospace Silicones Pass Independent Testing

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-220 Military / Aerospace 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. 

Standard Description Test Result
ASTM D2240 Shore A Hardness Pass
ASTM D412 Properties in Tension for Vulcanized Rubber and Thermoplastic Elastomers Pass
ASTM D792 Specific Gravity Pass
ASTM D395 Compression Set Pass
ASTM D573 Heat Resistance Pass
ASTM D2137 Low Temperature Brittlepoint Pass
ASTM D471 Effects of Fluids Pass

Click here for test details and then choose the Test Report button at the bottom of the page. 

SSP-267 Military / Aerospace Fluorosilicone 

SSP-267 is a 40-durometer (Shore A), peroxide-catalyzed, heat-cured fluorosilicone that meets MIL-DTL-25988, Type 2, Class 2, Grade 40 requirements and combines broad temperature resistance with resistance to fuels, coolants, and oils. According to MIL-DTL-25988, Type 2 fluorosilicones are for molded parts (other than O-rings), sheets, strips, and extruded shapes.   

SSP submitted samples of SSP-267 to the Physical Testing Department at ARDL, the Akron Rubber Development Laboratory. The table below shows how these samples passed the following tests. 

Standard Description Test Result
ASTM D412ASTM D2240ASTM D297 Original Physical Properties Pass 
ASTM D624, Die B Tear Resistance Pass
ASTM D573 Heat-Aged Properties Pass
ASTM D395, Method B Compression Set Pass
ASTM D471 Fluid Immersion Properties Pass
ASTM D1329 Low Temperature Retraction Pass

Click here for test details and then choose the Test Report button at the bottom of the page. 

Choose Military / Aerospace Silicones from SSP

Specialty Silicone Products (SSP) of Ballston Spa, New York (USA) provides a full line of military / aerospace silicones that meet commercial and military standards. These elastomers are supplied as ready-to-mold compounds and compression-molded sheet stock. To request a quote or for more information, contact SSP on-line or email Dominic Testo