I do a lot of layering, sometimes good, sometimes not so good. I usually do tests on a tile first & then pick a few combos & put them on a throw away pot. After that I will use it on a good pot. Lately, I have been having some crater/pinhole problems. It started with certain combos using some Spectrum glazes. I have been respraying & refiring the problem areas, but then other areas pop up. A couple of these pots have been glaze fired 5 times. Does anybody out there have a magic glaze that will make these other glazes behave, since I can't take them off the pot? Is there a glaze that I can pack into the craters that will make them smooth out? Is it a clay problem? I always do a 15-20 min. hold at the end of the cycle. I have even had a few pinholes on a controlled cool down as well. I wonder if it is time to get the hammer out. Any help would be greatly appreciated. Thanks, jhp
Nice that some of the pitting has smoothed out. Sometimes I've been so frustrated with pin holes that I don't want to waste any more time on the piece. It ends up saying hello to Mr. Hammer! LOL.. Glad that your re fires re working out.
Low cost flat lapping disc can be used on you potters wheel if you, drill bat pin holes in it, and provide a trickle of water to cool it. At amazon.com, 120 grit for aggressive material removal. Click the image to purchase
Members have had great things to say about John Britt's new book, Mid-Range Glazes. Click the image to buy from Amazon.com
If you just want to spout off, it is best accomplished as a blog posting. If you want to get more guidance and ideas from other members, ask a question as a new discussion topic. In the upper right corner of the lists for both types of posting, you will find an "+Add " button. Clicking it will open an editor where you create your posting. 4/16/2014