Northstar Compatibility

Please test all glass colors for compatibility in your specific application before making an expensive piece or production run. NorthstarŽ Glassworks, Inc. strives to make all of our colors compatible and easy to use. However, it is not possible to make all colors exactly the same C.O.E. Some colors may check if used in combination with other colors under certain applications.

Certain colors, the NS-11 Jade, NS-51 Sable, NS-53 Forest Green and the Exotic Colors in particular, may give the glass worker cracking problems if worked incorrectly. Those colors are best used on the outside of your artwork. If encased with a thick layer of clear, as would be the case in a marble for example, some checking or cracking could occur. Again, please test the color for your application. If you do encase these colors, use as little color as necessary and anneal very carefully.