Potter's Slip is a updated version of slip trailing, which is used to create pattern decoration or personalization on your pottery pieces. Potter's Slip can be fired from Cone 06 up to Cone 9. The 4 oz. bottle of slip is conveniently packaged in it's own slip trail bottle. Slip trails are applied to wet clay. Our Potter's Slips are AP (Non-Toxic) Click here for information on How to use Potter's Slip. Click here to view an animation on how to use Potter's Slip. Click here to view a decorative Slip technique called feathering.