An innovative way to measure the shrinkage of your clay. Works great when making replacement lids for a casserole dish that has been bisque fired. Has 4 clay shrinkage percentages to aid in matching lids to bowls etc. How to Use Your Shrink Ruler To replace a lid for a casserole dish that has been bisque fired, measure the casserole with a regular ruler. Using that same measurement measure your wet clay with the Shrink Rule on the side with the closest shrinkage to yours. To replace a lid for a casserole dish that has been glaze fired, measure the casserole with a regular ruler. Using the same measurement, measure your wet clay with the Shrink Rule on the side with the closest shrinkage rate to yours. If you want a piece to measure 8" after 12% shrinkage, use the 12% scale on your Shrink Rule to measure 8" on the wet clay. View this post on Instagram A post shared by @diamondcoretools
