Absolutely Jet-Black Cone 6 Engobe on M340 The could also be super white

Wednesday 11th April 2018

This is the L3954B engobe. 15% Mason 6600 black body stain has been added (instead of the normal 10% insight-live.com/material/1724">Zircopax used for white). Of course, a cover glaze is needed for a functional surface. We put a lot of development work into producing a recipe fits this body, M340. It works even when thickly applied because it has the same fired maturity as the body. Lots of information is available on using L3954B (including mixing and adjustment instructions). Engobes are tricky to use, follow the links below to learn more. L3954B is designed to work on regular Plainsman M340 (this piece), M390 and Coffee Clay. Most important we document how to adjust its maturity, and thus firing shrinkage, to fine tune fit if needed. These bodies dry better than porcelains and are much less expensive, so coating them with an engobe to get a surface like this makes a lot of sense. Ed Phillipson discovered this 80 years ago, enabling selling ware made from these clays as white hotel ware.

Pages that reference this post in the Digitalfire Reference Library:

Mason 6600 Black Stain, L3954B - Cone 6 Engobe (for M340), L3954J black engobe on a cone 10R whiteware body, How to make a black cone 6 oxidation clay body, Here is why porcelain engobe does not fit stoneware, How to test if an engobe fits a clay body, Stained engobes can be applied thinly yet fire opaque, The L3954B engobe page at PlainsmanClays.com explains how to mix and use it on Plainsman clays bodies at cone 6., Thixotropy, Engobe

This post is one of thousands found in the Digitalfire Reference Database. Most are part of a timeline maintained by Tony Hansen. You can search that timeline on the home page of digitalfire.com.