As an alternative to wax resist, potters use Ammonia Base Latex from Laguna as a removable resist. You can slip-trail or brush the latex directly onto a bisque surface or a pre-fired glazed surface for multiple glaze applications; once it dries you can peel the latex off and apply additional layers of glaze or decoration. Use directly from the jar. If you prefer a thinner consistency, add a very small amount of water and stir thoroughly. Allow to dry between coats.
You may also use this product to make thin, flexible molds into which you can pour plaster, resins or other substances. Your models and finished pieces are able to have undercuts since your latex mold will stretch when being pulled away. Apply liquid latex in thin coats. Allow to dry thoroughtly between coats. When the latex mold has dried, shape a rigid shell out of plaster around the latex mold to prevent its distortion when pouring into it.
We normally do not ship Ammonia Base Latex during freezing weather which, in Montana, extends between October and April. When possible, we ask that you plan ahead. If you need Ammonia Base Latex shipped during winter we can ship it UPS next day or second day for additional charges. When we ship during freezing weather, however, it is at the customer's risk.
If the smell of ammonia bothers you, consider AMACO's Latex Rubber.