Glass Fusing Tips: Murrine and Frit Casting
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Create beautiful old-world or modern designs by combining Glacial Art Glass millefiori or dots and Colour de Verre pendant molds! While the results look professional and intricate, they are easy to make and require only one firing.
Learn more details using Colour de Verre's product sheet "Millefiori and Murrini Pendants", which you can find here: http://www.colourdeverre.com/learn.php?c=4
Filling the Molds
Consult the table below to find the fill weight for the mold cavity you wish to fill. Measure out half the fill weight of medium Clear glass and evenly distribute it in the bottom of the cavity. Repeat this until all the cavities contain a layer of frit. Using a small spoon, evenly distribute half a gram of fine Clear over the Medium Clear frit in the cavity. This creates level working surface on which to place the murine.
Place the murrini on top of the frit layer in a pleasing pattern. We like using small tweezers. Finally, "stabilize" the murrini by evenly distributing another half gram of fine Clear frit in each cavity. The murrini should not be covered, but sticking up out of the frit. Carefully move the mold to your kiln. Fire according to the Firing Schedule below.
Click the images below for links to buy the murrine used in these pendants!
Fill Weights
Design | Grams of Frit per Cavity |
Oval Pendants | Large 11, Medium 6, Small 4 |
Teardrop Pendants | Large 11, Medium 6, Small 4 |
Offset Round | Large 14, Medium 10, Small 6 |
Offset Square | Large 20, Medium 15, Small 7 |
Pillow Pendants | Rectangular 24, 18, 12; Square 14, 10 |
General Firing Schedules
(Schedule for COE 96. For COE 90, increase casting temperature by 20°F / 10°C)
Segment | Ramp | Temperature | Hold |
1 | 350°F 195°C |
1250°F 675°C |
15 minutes |
2 | 350°F 195°C |
1410-1420°F 765-770°C |
20 minutes |
3 | As Fast As Possible No Venting |
960°F 515°C |
60 minutes. Off |
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