Hyperborea has a rich violet and red color transmission and easily develops a strong silver luster when reduced. It works well both in surface applications and under encasement. The color is saturated and may present best over a core of clear glass, as pictured. A replacement to Boreas, Hyperborea is made in our updated color base resulting in cleaner colors, smoother working characteristics and improved viscosity curves. Based off of the BE test batches.