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  1. Pugmill, Looking To Purchase

    I have an old Venco deairing pugmill with an aluminum barrel that I finally did a deep clean on - lots of pitting and many small chunks in my clay when I pugged before this. I got it used a year ago and this may be the first time it was deep cleaned since it was bought in the '60s !?! Has anyone tried using the stuff people spray on truck beds as a liner for the aluminum? It wouldn't sheet off like epoxy, although it could be scratched. It's somewhat flexible, so the scratches may even seal off enough to still have some corrosion protection. I do want to use white clay and I fire to cone 6, so I expect soda feldspar will be introduced to the barrel. My chemist/engineer friend suggested this. My husband suggested something else - a urethane resin that is made for the bottoms of boats. It advertises as flexible with no chipping or flaking, even if it hits rocks. It's called Amazing Goop Coat-It and can be purchased at Home Depot. Any input appreciated! Kathy
  2. I just glaze fired two large platters and used a generous coating of lid wax (wax resist + alumina hydrate) on the bottoms. They did great, but left lots of dust to clean up. No dust got in the wrong place during the firing. Kathy
  3. Wave Teapot

    Fun! It has a nice flow to it, with the textures accentuating the curvature.
  4. Sealing In Fiber Blanket?

    Thanks for all of your input; I'm learning a lot! Kathy
  5. Sealing In Fiber Blanket?

    We were just looking at the kiln parts, and the back with the flue is made of galvanized sheet. The kiln was built in the early 80s and kept outdoors with a small corrugated metal roof in a moist environment. The sheet metal looks to be in good shape, even at the screw holes, except for the flue. My husband thinks the flue had some heat leaks, because there is a rust pattern at its back in the shape of a fat candle flame. So, it looks to me like galvanized sheet covering good insulation should work well! Kathy
  6. Sealing In Fiber Blanket?

    What he said. best, .................john Point taken, thanks! I may end up with a little airspace, but I'm not sure since I'll be mortaring the bricks together this time. Will having a bit of space between the bricks, the kaowool and the sheet metal be any problem? Kathy
  7. Sealing In Fiber Blanket?

    Hardibacker is concrete and water absorbent. I would keep it dry so the steam won't cause trouble, like popping or explosions. Insblock insulation is a product name for a fiber refractory board. This would serve your purposes better, in my opinion. Marcia Hmm, I hadn't thought about any moisture problems. My main concern was whether it held its integrity after repeated exposure to high temperatures; cellulose makes up 10% of its composition. I found a good description of Insblock at Marc Ward's site http://www.wardburne...erproducts.html and am now leaning toward using sheet metal as my outer shell and increasing the Kaowool thickness from 1/2" to 1", as long as it can be compressed. I'm rebuilding a kiln that I took apart to move, so I have 3/4" of shell space between the frame and the bricks. The old shell didn't handle being taken apart too well. Thanks for your input! Kathy
  8. Sealing In Fiber Blanket?

    I'm planning to use Hardibacker 1/2" underlay board as my outside panels, then kaowool panels, then soft firebrick as I build my gas kiln. I was just looking at the Hardie board website, and it seems that it should work well, but has anyone else used this? There isn't a direct rating for heat that I can find on the site. Kathy