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Depth Sounder on the blink
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 |
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