shane mickey on mon 18 dec 06
hey all,
just was cleaning up around my anagama and was seeing all the type of brick around. when i came into my glorious brick purchase back 3 years ago, i was very very fortunate to recieve several pallets of a AP green brick with the name UFALA XCR, i believe the xcr stands for extra creep resistent. i sold a few to a client i built a soda kiln for, gave some to a buddy for his wood/soda kilns bagwall, and have tested a few here and there. The good news is these bricks show very little salt build up and in my gama show now woodfired effects or ash deposits! the bad news is when i called ap green to get a price qoute they were like $5 bucks a piece. but they are clearly the best brick i have ever seen. they are a high fire super duty class brick with a 64% alumina content (i could be off on the alumina) the key is their density. i have talked with refractory folks and they agree with me. density is the most important factor in salt/soda kilns. a more dense high duty will outlast a
more porous super duty. the only other brick i know of that i have personally witnessed totally resisting salt is one called a crystar or crystalite? linda macfarling has them as abagwall and they show no discoloration or glassing! just two more cents.
shane mickey
shane mickey pottery and kiln design services
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