Pinwheel Dichro Images on Boro 1/2" square - 1/8" thick
Details
Random pinwheel designs coated, not etched, on 1/2" x 1/2" square 1/8" thick borosilicate glass. The image shows an entire pack of 20 and this item is sold by the single image.
From CBS on working Boro Dichro:
Boro Dichroic tends to work better if pre-heated. This densifies the coating and makes it more durable in the flame. This can be done in a kiln by firing the boro to 1600 degrees F with -0- hold. Lampworkers attempt to perform this pre-firing in the flame as well. This is when it is important to keep the coated side "away" from the flame. But when kiln-firing there is no need to fire face down.
We fire all of our Boro Dichroic "face Up" in the kiln so that the coated surface does not get the slight impression of the kiln shelf onto the glass. But, if the artists wants to keep the uncoated side smooth and clear, then the Dichroic side can be faced down in the kiln and then fired.
From CBS on working Boro Dichro:
Boro Dichroic tends to work better if pre-heated. This densifies the coating and makes it more durable in the flame. This can be done in a kiln by firing the boro to 1600 degrees F with -0- hold. Lampworkers attempt to perform this pre-firing in the flame as well. This is when it is important to keep the coated side "away" from the flame. But when kiln-firing there is no need to fire face down.
We fire all of our Boro Dichroic "face Up" in the kiln so that the coated surface does not get the slight impression of the kiln shelf onto the glass. But, if the artists wants to keep the uncoated side smooth and clear, then the Dichroic side can be faced down in the kiln and then fired.