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Left: Our G2934Y recipe with 12% Cerdec 239416 yellow stain. Right: Amaco SM-63 matte yellow. This GLFL test compares the melt flow of these two in a cone 6 C6DHSC schedule firing. The SM-63 is melting very well and yet is more matte (of course the mattness of the G2934Y can be enhanced by small additions of very fine calcined alumina). Its color and character indicate the possible presence of rutile. Notice its flow has many pinholes indicating the presence of materials having significant LOI (these holes are also evident where layer thickness is greater on the tile). The high melt fluidity is the mechanism behind the way its color intensity varies with the thickness (not the tile on the lower right). The SM-63 also performs well in a cutlery marking test.
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