Where does the time go? Each day I wake optimistic that I can accomplish every one of the 500+ tasks on my mental to-do list; then life happens and the list—well it gets shuffled and resorted. But today, the deck is stacked in our favor. I’m able to carve out time to spend with you and share the next phase of the sink building process. Enjoy!
Fused Glass Sinks: Part 3
There are two basic types of fused glass sinks: layered and cast. Layered sinks are made by stacking cut glass circles, one on top of the other. When the fused glass comes out of the slumping mold it has a beautifully rounded, finished rim.
A cast sink is made by piling glass bits and pieces on top of a clear base. It’s generally thicker and has a sharp, unfinished edge when it comes out of the slumping mold. This kind of sink is ‘cold-worked’ on an industrial size, water-fed, grinder/polisher to make the rim smooth and shinny. It’s a multi step process. We start with a course wheel and grind the edge of the glass until its uniform and even. Then it’s ground on several medium grit wheels. Gradually, the edge becomes super smooth, but it still retains a dull haze.
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Grinding the glass edge.
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The last wheel is covered with thick felt. We coat it with polishing rouge and turn the sink on it until the edge has a high gloss shine. The grinding and polishing process can take anywhere from 2 -10 hours. The length of time depends on the thickness of the glass and the skill level of the operator.
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Polishing the glass edge.
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Drilling the drain hole is the next step. A centering template is temporarily glued to the inside of the glass bowl and a small amount of water is put in the basin to ensure a clean cut. We use a 1 ¾ inch diamond coated core bit to drill the drain hole.
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Drilling the drain hole.
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We then use a diamond-coated hone to counter-sink the drain hole so the strainer drain sits flush with the inside surface of the sink.
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Counter sinking the drain hole with the hone.
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Drilling and countersinking the drain hole are the fastest steps taking about 10 -15 minutes total.
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Testing the fit of the strainer drain.
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Edge and drain hole detail.
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Patience is the key to making successful sinks. This process can’t be rushed. The upside, all good things come to those who wait.
Until next time,
Lisa
Up next:
Glass Craft and Bead Expo show countdown next week.
Las Vegas, NV April 3 - 7, 2013
Make your own sink!
Fused Vessel Sinks and More, 4-Day, hands-on workshop
Class size is limited.
May 14-17, 2013
Sept. 24-27, 2013
