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You could also try using a brillo pad or steel wool and soap and scrub both sides- one side is usually noticably rougher- which I have always assumed is the tin side. I suppose I should taste it to make sure. slurp, Jolly

Seattle Pottery sells something called 'N' board which is some kind of fiber and comes in 36 x 48 x 1 inch. I put kiln wash on it and use it all the time. Seattle Pottery is listed in the resources area on this site. -Jolly

Make a shrine to Bert and worship daily. I have learned so much from Bert on this site that the shrine gets larger all the time. However, I started by assuming float glass does most things at 100 degrees hotter. It is a start, then get a bunch of free windows (I put an ad in the local paper), then g...

I also used to get scum occasionally but never do now. In my case, I had used too much borax and it did not all go into solution. So if I would shake the spay bottle before I sprayed, some of the undissolved borax would land on the glass (float) and give me scum. Now I let the borax dissolve and the...