WaIIy wrote:
On Tue, 04 Mar 2008 09:40:17 -0500, Martin Baxter
wrote:
WaIIy wrote:
On Fri, 29 Feb 2008 14:01:20 -0500, wrote:
clear silicone
is NOT a good adhesive)
It's a fantastic adhesive.
You just need to know how to apply it.
Ps - Silicone is not gas and oil friendly.
NASA spent a bazillion bucks trying to find a suitable adhesive for the
heat shield tiles on the shuttle, ended up using good ol' silicone, (RTV
if you want to sound tech savvy).
Cheers
Marty
Nice try, but no.
You could perhaps cite a source for your cynicism?
"To prevent damage to the tiles, Strain Isolation Pads - a layer of
nylon felt Nomex (flame-retardant material)- are used between the tiles
and the orbiter's surface. The pads are bonded to the tiles, as well as
to the skin of the Shuttle, with RTV, a room-temperature vulcanizing
silicone adhesive. The tile surface bonded to the pads is densified with
silica-type solutions for added tensile strength."
Even the grout uses RTV "The gap fillers are envelopes of ceramic fiber
cloth stuffed with a resilient ceramic filler batt, and sometimes with a
metal foil. The filler bar consists of strips of Nomex felt coated with
RTV, and is part of the assembly method used for tiles."
See
http://www-pao.ksc.nasa.gov/nasafact/tps.htm.
Now your were saying?
Cheers
Marty
See