Experimental #3 is a response to our artists who have been asking for an opaque brown. Due to environmental concerns, we have experimented with the alternatives to the industry standard cadmium based brown. We have formulated Experimental #3 with a good working viscosity, as well as dense color saturation to help the artists explore this earth tone. As with many opaque colors this glass can suffer from boiling issues if pushed too fast or hot. Let us know if you think this color should find a permanent place on our pallet.