Off-gassing and Out-gassing

For aerospace applications, materials are screened for out-gassing and off-gassing properties. Out-gassing (the release of chemicals from non-metallic substances in vacuum conditions) and off-gassing (the release of chemicals from materials at ambient or high pressure) are important in assessing the use of materials in these unique environments. VECTRAN has excellent out- and off-gassing characteristics.

Off-gassing and out-gassing test results for VECTRAN HT fiber

VECTRAN Fiber with: TML% CVCM% WVR% Toxic Hazard Index
No finish * 0.00 0.00 2.226**
T97 finish * 0.00 0.00 0.009
T150 finish 0.30 0.00 0.00 0.015

* Test results exceeded precision limits required to produce a statistically meaningful average. Individual sample measurements: fiber without finish, 0.21 and 0.07%; fiber with T97 finish, 0.13 and 0.19%.

** The contribution of benzyl alcohol to this T-value is 2.214. The concentration in the sample was 0.31μg/g; no measured SMAC value was available, therefore a conservatively low value of 0.14μg/g was assumed.