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About Cobalt-6, 516
Cobalt-6, 516 was one of our early releases. The darkest of the Glass Alchemy cobalt colors we were faced with, "how dark is too dark"? We had the millifiori maker and the stringer puller in mind when we developed this color. Now one of our most popular colors, it is used by many anytime they need a denser dark color.
Working Tip: Work in neutral flame to avoid reduction (gray streaks).
Artist Description by Mike Shelbo:
"A stiff, dense translucent cobalt blue, Cobalt-6 is so dense in color saturation that it seems black.
When drawn down into extremely thin threads, it will still remain a deep cobalt blue transparent. Keep Cobalt-6 in the outer region of your flame length, in a mix of gas that will not reduce the color if used without encasement. Grey streaks or patches could develop from too much propane in your torch flame, so using a neutral flame is best.
Cobalt-6 can be sandwiched between clear and blown out very thin while still having an intensely deep cobalt blue color. Light transmitting through Cobalt-6 when color layer is thin enough is very rich and pleasing." - Mike Shelbo