Sun, May 08, 2005
Law Of Unintended Consequences
It's not just a fashion statement, or an expression of your
resolve. Your wristband can also be a flight risk. NASA issued an
internal advisory Thursday banning "Return to Flight" and similar
wristbands from many NASA work areas. The wristbands pose a
silicone contamination risk to components.
The advisory states that silicone inhibits bonding, and is
easily transferred. Even very small amounts can inhibit the bonding
and construction of components. Solder joints and some coatings can
fail if silicone works its way into the process. Electrical
fabrication, inspection, and test areas are particularly sensitive
to silicone contamination issues.
It's not just the "Return to Flight" wristbands. Similar
products such as Lance Armstrong's "Livestrong" bracelets can pose
the same risk.
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