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Controlled Volatility Silicone Materials: Development and Analysis of Ultra Low Outgassing Elastomer For Space

In this paper, we compare a standard controlled volatility silica reinforced silicone adhesive that has a history of use in aerospace applications with a newly developed equivalent Ultra Low OutgassingTM version that exceeds typical ASTM E 595 requirements achieving < 0.1 % TMLs and < 0.01% CVCMs. We will compare the cured physical properties and monitor the outgassing profiles of each material based on ASTM E 1559 test method. We will also examine how different reinforcing and functional fillers can be incorporated into silicone materials while continuing to achieve low outgassing characteristics.