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033-021-Frit "Penumbra"
033-021-Frit "Penumbra"
Flat curls by Paul Trautman


 
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Price: $14.00


Product Code: BORO-FRIT-PENUMBRA


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Description
 

Named for the shadowy edge of a lunar eclipse, Penumbra is a reactive “silvered” cobalt blue, reformulated from one of Paul’s old favorites. Different colors are produced from reduction or oxidation, primarily a wide variety of blues and greens. Reduction can create a luster that you can trap under a clear encasement. However, surface haze doesn’t burn off as easily as amber/purple type glasses.


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