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.  


And remember–All orders* above $100 are eligible for free shipping.  Just use coupon code FREESHIP100 at checkout!*

*Excludes Pottery Wheels; continental US only


In stock

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