Our space-grade materials are available in Controlled Volatility and Ultra Low Outgassing lines, both of which are tested to specifications laid out by NASA and the ESA.
To perform in the harsh conditions of outer space, silicones must be highly purified. NASA and the European Space Agency (ESA) require materials to be tested per ASTM E-595 prior to use in space. These materials must meet the specifications outlined in NASA SP-R-0022A and ESA PSS-014-702, with a maximum Total Mass Loss (TML) of 1% and Collected Volatile Condensable Material (CVCM) of less than 0.1%. The NuSil™ brand considers materials that pass these tests to be of space grade.
Our space-grade materials are offered in two lines: Controlled Volatility (CV) line and Ultra Low OutgassingTM (SCV). CV materials meet or exceed the ≤ 1% TML and ≤ 0.1% CVCM requirements; SCV materials exceed the current ASTM E 595 by an order of magnitude, ≤ 0.1% TMLs and ≤ 0.01% CVCM.