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Tips, Techniques, and Questions -- Technical questions or tips |
2017-07-23, 12:26pm
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professional gimme fiver
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Join Date: Feb 12, 2007
Location: Lancaster, PA
Posts: 1,207
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Baking Soda Finish
I have a question. I've made beads over the years that I thought would be fun to roll in baking soda as a finish before putting them in the kiln. I usually make the shape of the bead, roll it in baking soda, stick it in the flame for the residual soda to burn off, then put it in the kiln. And that all works great! The beads look like lava beads, they are awesome. BUT.... I've noticed that they seem to flake, shed, become dusty with minute particles of glass dust. I believe this is because the surface of the bead is compromised by the backing soda. I'd like to make more of these and sell them, but I don't want them to arrive in a bag of dusty glass to the new owner. And besides, wearing glass beads like that can't be safe.
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Alexis
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2017-07-23, 12:42pm
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Senior Member
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Join Date: Feb 02, 2010
Posts: 3,382
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Hi Alexis. I've made some of these over the years, but I found the 'trick', if you will, is to very lightly dust with baking soda. Most folks, I think, roll in baking soda with the glass almost molten. It picks up too much baking soda and so it continues to react with the glass for a very long time. I've got a couple that i kept that I've been wearing since the early 2000's that have never flaked or disintegrated. HTH
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ESC
Soft glass on a Minor/concentrator since 1996
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2017-07-23, 3:56pm
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Jer. 29:11, Prov.10:19
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Join Date: Jun 29, 2005
Posts: 487
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Give them a nice soak in vinegar, that'll help quite a bit.
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2017-07-23, 5:08pm
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addicted to dichro
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Join Date: Jan 05, 2006
Location: Maine
Posts: 2,402
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Yes, I've also found that the way you have to apply it is by pinching a little and dusting the bead ever so lightly while turning the mandrel. I found that the beads I get too much baking soda on are way to abrasive to be worn. I think the reaction would depend on what the glass is too.
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2017-07-23, 5:50pm
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Slogan Challenged...
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Join Date: Mar 21, 2009
Location: Maricopa, Arizona
Posts: 6,286
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great advice, I always thought you had to use a lot of baking soda. I have the tut, and I should try this. It's such a gorgeous look. Thanks for asking, Alexis
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Kristin ~
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2017-07-24, 9:49pm
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Phill
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Join Date: Mar 21, 2009
Location: Winnebago, MN
Posts: 2,489
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I wonder if a salt shaker would give you a better control of the quantity baking soda applied?
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The Zombie Apocalypse is Upon Us.
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2017-07-25, 6:47pm
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Lisa Berczel
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Join Date: Feb 11, 2015
Location: Southern California
Posts: 45
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I use an enamel sifter to dust a thiiiin layer on the flat side of a graphite marver and then roll the bead in that and tap all the excess off the bead.
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