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Dave ferrier 08-20-2018 07:18 PM

plastech 85p
just curious to know if anyone has used plastech 85p? It would be a substitute for mono t 9 I hoping? Also something called greentherm 23LI? thanks for any information. - Cheers Dave

Pete VanderLaan 08-21-2018 09:55 AM

Greentherm 23 LI is a softbrick and I would stay away from it as a direct contact material. I would not be inclined to use any brick lower in rating that a 2600F.

There is simply no equivalent substitute for Mono T-9. It is gone forever as the mine run played out. Missouri Refractories did come up with a very nice rammable clay the geologists were GaGa over that Mark Peiser used recently. I think it can be sourced from Hi Temp in Fenton Missouri, not to be confused with High Temp the crucible maker.

Otherwise, if you are putting in a furnace floor and expect a lot of glass contact, most of the plastic refractories with at least 70% alumina are pretty good lasting three years plus, sometimes more. I don't have a lot of experience with phosphate bonded stuff in that place. Phosphate is not a particularly corrosion resistant material when it comes to glass contact like chunky alumina is but I do know refractories west and in general they stock materials that perform quite well. But, you might check with Tom at Hi Temp. He stocks a lot of good products as well and is very reasonable on price and shipping.

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