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Old 11-08-2017, 08:15 AM
David Balkon David Balkon is offline
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Glass on floor of my pottery kiln

Hi guys,

I use my wife’s pottery kiln with a computerized controller as my annealer. She still uses it for pottery. She fired a load (2350 F) the other day and did not vacuum it out well beforehand and left a broken piece of glass in the bottom. It has melted abound a quarter inch deep into the soft fire brick on the floor of the kiln.

Do I need to get in there and dig it out before she fires it up high ago? Will it eventually melt all the way through if I don’t? I assume I do, I just thought I would check with y’all first.

Thanks for your feedback!
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Old 11-08-2017, 11:36 AM
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If it's removed easily, remove it.
If not, the tendency is that as the glass interacts with the fireclay, it gets progressively more and more non glasslike and pretty much stops dissolving things. It will eventually turn opaque as the fireclay dominates more and more. .
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Old 11-08-2017, 01:14 PM
Steven O'Day Steven O'Day is offline
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If the floor is insulating brick it will dissolve the brick and stop, this will be deeper than with firebrick. In our school kilns I usually remove it if it is still a shiny blob and let it sit if it has sunk in.
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Old 11-08-2017, 02:51 PM
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Don't worry, it's like xenomorph blood. It'll slow down after a few levels before it breeches the hull.

Seriously, what Pete said. If it's been taken up to 2350 already I don't think it's going to move much more.
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Old 11-08-2017, 10:04 PM
David Balkon David Balkon is offline
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Thanks for the feedback.
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Old 11-10-2017, 02:58 PM
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Franklin Sankar Franklin Sankar is offline
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That is the best news. My floor is a mess
Franklin
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Old 11-10-2017, 05:09 PM
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Quote:
Originally Posted by Franklin Sankar View Post
That is the best news. My floor is a mess
Franklin
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Old 11-10-2017, 06:18 PM
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Sorry Lesson learnt but too late. It will be interesting to see what happens. Floor has a layer of expired refractory cement and sand.
Franklin
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Old 11-15-2017, 04:59 PM
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I have been known to fill them with brick mortar after they stop dissolving the IFB like cotton candy someone spit on.

Not that the inside of my glory hole is pock marked with such things...no sir!
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