Speedball’s Underglaze Test Tile poster is the perfect addition to any pottery studio or classroom!  This beautiful layout not only adds an eye-catching piece of artwork to your workspace’s wall, it serves as the perfect reference for ALL thirty-six Speedball Underglaze colors.  Showcasing 108 total test tiles all handmade and fired in Speedball’s lab, the Speedball Underglaze Poster accurately represents results at Cones 05, 6 and 10* both with and without the use of the appropriate Speedball clear glaze.  (17.875″x 23.875″)

*All Speedball Underglazes are dinnerware safe when covered and fired as recommended with a dinnerware safe glaze.  All tiles fired on white bisque tiles.  It is always recommended to create your own test tiles to verify performance with clay body and firing schedule.  

$11.99

In stock

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