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Low Outgas Silicone Pressure Sensitive Adhesive for Aerospace Applications II

The aerospace industry, primarily satellite manufacturers, have expressed the need for a low outgas, thermally stable, adhesive tape. The current products in the marketplace have limitations at both high, 175ºC, and low, -100ºC, temperatures. A new silicone Pressure Sensitive Adhesive (PSA) was developed to pass ASTM E-595(1), low outgassing requirements of 1% or less Total Mass Loss (TML) and 0.1% or less Collectable Volatile Condensable Materials (CVCM). This PSA was then fabricated into a tape and measured for performance and compared to other non-low outgassing silicone PSAs. The basics were outlined in a presentation presented at the SAMPE technical conference in Long Beach, CA, May 2004(2). This paper will expand on this technology by providing testing data at both high and low temperatures, comparative testing under different conditions with industry standard acrylate tapes, and more details on the fabrication of the tape.