Refills for Axner Underglaze Pens

Axner Underglaze Refills go into Axner Underglaze Pens. The product was developed for cone 05 and 06 firings, and most of the colors do quite well at much higher temperatures. Manufacturer testing has yielded the following results: Cone 06 - 04: All colors remain strong and vibrant Cone 6: Most colors remain strong and vibrant. Exceptions: Chartreuse, Light Yellow, and Light Pink are weak. Greens, Peach Sun, and Purple Maroon change color somewhat. Cone 10: Same as cone 6 with the following exceptions: Chartreuse, Peach, and Light Pink completely disappear. Note: Only food safe if a food-safe clear glaze is applied over these underglazes. We also have the pens that accept these refills.