Diary of a Demented Store Owner

Tuesday 27 September 2011

Kind of a Cool Thing to Try, from Bullseye



Frit balls—easy to make and fun to use!


Spread out pieces of coarse frit (0003) on a primed kiln shelf, leaving space around each piece. Fire hot enough to round out the frits, usually 1500°F (816°C) with a 20-minute hold. There's no need to anneal. Open the kiln and voila, you'll find frit balls! Once they’re cool, rinse with glass cleaner and rub dry to remove primer dust. For opalescent styles that pick up primer, do a quick soak in CLR (calcium lime rust remover) before rinsing and drying. When clean, the frit balls are ready to use as design elements or for building larger forms.

The frit balls shown here were made with 
Opaline Striker frit, which should be fired on the cool side to achieve a pleasing translucent quality: 1480°F (804°C) with a 16-minute hold. Get Opaline Striker frit working notes.

To make the Opaline frit-ball bowl shown above, first create a dam by cutting a 5.5" hole in a sheet of 1/8" fiber paper, leaving the border intact. Place the dam on a primed kiln shelf and load it up with about 5 ounces of frit balls. Tack the balls together by firing at a rate of 300°F (167°C) per hour to 1375°F (746°C) for 10 minutes. Slump the piece in a separate firing using 
mold 8746 . We recommend annealing in both firings.



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