Depending on the location and application, we have had good success using Deacon products 3300 (for bolted together flange surface-to-surface seals) and 4011 (for threaded fittings). We don't really care for Deacon product 8875-Thin, but maybe we simply did not have the correct need/application for that product.
-brian On Sep 5, 2011, at 7:38 AM, Bruce Green wrote: > Check out this line of high temp sealants. Deacon Industries. Bruce Green > http://www.deaconindustries.com/high-temperature-sealant.html > > On Sun, Sep 4, 2011 at 11:49 PM, Pete & Sheri <[email protected]> > wrote: > > > > > From current discussions about gasification system sealing, I just recalled > how we sealed vacuum heat treating vessels that had to be good down to about > 10 ^-6 microns or better. We used Quad rings in milled (trepanned) recesses, > with vacuum greases applied. These seals were resealable many dozens of > times. I don’t know about temperature ranges available for them. In our > case, we used them on the exterior joints of the vessels where the temps > seldom exceeded the boiling point of water. But that was in the 1960’s, so I > wouldn’t be surprised if materials have improved a lot since then. > > A “Quad ring” is a sort-of square cross section ring, with o-shaped edges. > > See: > > http://www.daemar.com/pdfs/118-DMR_Quad-Ring-GrooveDesign_01.pdf > > for a better look at one style. There are others. > > > > Pete Stanaitis > > ----------------- > > > _______________________________________________ > Gasification mailing list > > to Send a Message to the list, use the email address > [email protected] > > to UNSUBSCRIBE or Change your List Settings use the web page > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org > > for more Gasifiers, News and Information see our web site: > http://gasifiers.bioenergylists.org/ > > > _______________________________________________ > Gasification mailing list > > to Send a Message to the list, use the email address > [email protected] > > to UNSUBSCRIBE or Change your List Settings use the web page > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org > > for more Gasifiers, News and Information see our web site: > http://gasifiers.bioenergylists.org/
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