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Sandra Jean

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  1. crumbling soft brick in kiln

    Okay, so here's something new to add to the conversation. I should be clear that the bricks do not show signs of glazing, nothing is shiny or melted looking. The prior owner had kiln washed the inside to make it easier to clean between firings. So, basically, what is crumbling is that layer of kiln wash and some of the exposed brick. The bricks look very porous in some spots. I have removed chunks that were loose, but everytime I pass my hand over the bricks I get what looks like cookie crumbles. I am interested in finding out more about the Colloidal Silica (is this basically sodium silicate?)/Zircon mixture, but have received information stating that it would be too much of a "patch". The ITC is rather expensive (though, not as much as new bricks) and was told buy a kiln repairer that if I am not necessarily interested in improving the insulative value of the kiln, ITC is overkill. His recommendation was to use Rigidizer, which is $30/gallon and should act as the seal I need to keep these brick intact. Any new thoughts on the subject? Not knowing the properties of these different formulas, I feel confused!
  2. crumbling soft brick in kiln

    I'm going to try this as soon as I get a chance. The fact that it is cheaper than the cost of new bricks seals the deal.
  3. crumbling soft brick in kiln

    However, even in the bisque, I found particles in wares on the mid-level shelves. I'd like your opinion on the kiln cement idea. If I get a coat on those bricks, will the cement keep them together for the 2-3 firings I need for the upcoming show?
  4. I was gifted a small gas fired kiln, lined with soft brick that spent it's former life as a wood-soda hybrid kiln. Now, the soft brick inside is falling apart at every touch. Some spots are being held together with old kiln wash, but after my first two bisques and thorough shop-vacuuming, I still have stuff floating around inside. This has not been a problem through bisqueing, but I am ready to glaze fire and fear my pots will be ruined by all this stuff floating around. I would like to eventually buy new bricks to replace the old, but I can't do that before these pots need to be done. This is an unanticipated problem! Time to get creative! I am open to all ideas. One is lining these bricks with kiln cement. Would it, too, flake off?