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Glass

Blue Glass

Also known as smalt when ground as a pigment is a deep blue colored glass prepared by including a cobalt compound, typically cobalt oxide, or cobalt carbonate, in a glass melt.

Bora-Silica Glass

A type of glass with silica and boron trioxide as the main glass-forming constitutes. It is commonly found in chemistry labs, industrial settings, kitchenware, and premium wine glasses.

Brown/Amber Glass

Are favored for products that need to be protected from UV light when stored.

Clear/Flint Glass

A form of optical glass that’s very transparent and has a high refractive index.

Green Glass

A low-grade soda-lime glass whose natural green color is due to impurities in the raw material.

Mixed Cullet

Pieces of finished glass that, when mixed with raw materials and charged to a glassmaking furnace, is used to produce new glass.

John Arendt, EMBI Director

Need Help?

If you have questions about the Wisconsin Recycling Markets Directory, contact John Arendt, Director of the Environmental Management and Business Institute at UW-Green Bay. You can reach him by phone at (920) 465-2953 or email at arendtjo@uwgb.edu.

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