klen11 Posted December 26, 2011 Report Share Posted December 26, 2011 Hello! Ever painted some ceramic bisque and had the paint have spots of lighter color? Or even spots where paint won't adhere? A lot of times, this is caused by too much silicate added to the slip before the production of the ceramic bisque. One way that has really helped us get rid of the spots is by attacking the silicate on the bisque with an acid. If you create a solution of 25% white vinegar and 75% water, and clean your ceramic bisque with it, you drastically decrease the chances of spots. If anyone has any other techniques that help reduce spotting on ceramic bisque, and other possible causes of these spots, please feel free to post below! Link to comment Share on other sites More sharing options...
Stephen Robison Posted December 28, 2011 Report Share Posted December 28, 2011 I would say maybe learn how to use slips and underglaze and stop using paint. But paint is certainly a valid way of working. I just wonder why not make it archival and use slip? Link to comment Share on other sites More sharing options...
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