Cone 6 black with a second layer of oatmeal glaze

Friday 20th December 2013

The underglaze is G1214M cone 6 black (adds 5% Mason 6666 black stain). Overglaze left: GR6-H Ravenscrag Oatmeal. Overglaze right: GA6-F Alberta Slip oatmeal. Both produce a very pleasant silky matte texture (the right being the best). Both layers are fairly thin. In production it would be best to spray the second layer, keeping it as thin as possible. It is also necessary to adjust the ratio of raw to calcined Alberta or Ravenscrag Slips to establish a balance between drying hardness but not too much drying shrinkage (and resultant cracking).

Pages that reference this post in the Digitalfire Reference Database:

G1214M - Original Cone 6 Base Glossy Glaze, GR6-H - Ravenscrag Cone 6 Oatmeal Matte, GA6-F - Alberta Slip Cone 6 Oatmeal, Reactive Glazes, Glaze Layering

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