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Old 05-05-2019, 09:36 PM
Jesse Bogenrief Jesse Bogenrief is offline
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Patch material

Looking for suggestions for a patch material. I have a invested pot furnace and I'm going to shut down and build up the deterioration that is happening where the pot and castable meet. I have used some materials that worked pretty well but always looking for new info.
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Old 05-05-2019, 10:53 PM
Rick Kellner Rick Kellner is offline
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How about the patch specific formulation of a product called Zirmul?
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Old 05-06-2019, 07:35 AM
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Pete VanderLaan Pete VanderLaan is offline
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If you are talking about an area at the top of the pot where it meets castable, I assume that's happening because of some slop. If it is all around the pot, that would be different and would indicate you have leaks in many places.

If it is just slop, and given how long one might expect a crucible to deliver decent glass in an environment where it should have been replaced long ago, then I would suggest you don't need a very good castable in the slop arena. Mizzou at a 60% alumina would do fine and would last as long as the pot mercifully should be allowed to last.

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Old 05-06-2019, 09:18 AM
Shawn Everette Shawn Everette is online now
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Zircon(TZ) 150 is what I get from wet dog.
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Old 05-06-2019, 11:36 AM
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Sky Campbell Sky Campbell is offline
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I would look at a ramable plastics with a high alumina content. I have had great success patching doors sills, everything that see glass attack and high heat. Make sure to remove any glass as it will continue to eat away the refractory underneath the patch.
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Old 05-07-2019, 09:08 AM
Justin Zotynia Justin Zotynia is offline
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I used plastech 85p with good success.
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