NS-003 As suggested by this color’s name, there are numerous exciting effects that can be yielded from Northstar Multi boro glass. If you are new to the world of striking colors, Multi is a great forgiving start. When worked in an oxidizing flame this color produces smoky blues and sea greens. When reduced, NS-003 Multi yields earthy reds and gold tones. This color works well in moderately thin blown work and sculpture. To yield other interesting effects, try encasing NS-003 Multi with clear, or with a transparent color such as NS-25 Peach. To intensify NS-003 Multi’s appearance, try backing it with an opaque color such as NS-54 Star White.