Ceramics Glaze Bubbles

She is a studio technician at the michigan art center and started.

Ceramics glaze bubbles.

Efforts are made to create a dense laydown to reduce air pockets in dried glaze layer. I used a plate i made out of a medium fire clay that i bisque fired. The lines of glaze should be thin and smooth against the piece. Apply the glaze in a thinner layer to minimize its ability to contain large bubbles.

The firing is cone 6 7 with a slow cooling down cycle. I have experimented with different glazing techniques and consistencies of glaze. Blisters are evident on the fired glaze surface as a moonscape of craters some with sharp edges and others rounded. Use clays not containing large gas generating particles i e.

When the glaze is applied i see little air bubbles which i rub down. Fritted glazes generate far fewer bubbles although they can still come from the clay portion of the recipe used for suspending the glaze slurry binders used for hardening and from colorants under the glazes. The author hedy yang is a ceramic artist from novi michigan. These craters are the remnants of bubbles that have burst during final approach to temperature or early stages of cooling.

In this video i demonstrate how to do the bubble glaze technique for ceramics. Pyrites sulphates some fluid glazes i e. See more ideas about pottery techniques ceramic techniques glazes for pottery. Rutile blue tend to be quite sensitive to thick application and fast firing and cooling and bubbling problems with them seem out of place.

Fire it in the glaze kiln and enjoy your new bubble patterned piece.