Wax resist pint by Laguna Clay Wax Resist is a waxy substance used to prevent slips, engobes, or glazes from adhering onto the clay body or a prior coating of slip, etc. The resist can be used both under or over underglazes, glazes, and slips to create designs. Fast shipping and tracking included. A resist is especially helpful in keeping glaze from adhering to a pot's foot, and in the case of a lidded jar, from keeping the areas the lid and the jar meet free from glaze. In the past, wax resists where simply melted wax; today there are a number of wax emulsions, including many which are water-based.