G2896

Recipe (Percentages)

Notes & Instructions

Recipe G2896 is a Cone 6 iron-red glaze formulated with Ravenscrag Slip. The red coloration is derived from iron silicate crystal formation during firing. Technical properties and application guidelines are as follows: 1. Rheology: High iron content causes significant slurry gelling. Manage viscosity by adjusting water content to maintain fluidity, while monitoring for drying shrinkage and cracking. 2. Application: Requires a uniform, heavy application to facilitate crystal growth. Due to high melt fluidity, precise thickness control is required to mitigate running on vertical surfaces. 3. Formulation: The recipe utilizes a combination of frits (Frit 3249) to source boron and MgO, replacing previously used raw materials like Gerstley Borate and Ulexite to improve consistency. 4. Firing: The glaze is designed to develop iron-red color at Cone 6 without requiring specialized cooling curves. High loss-on-ignition (LOI) values may cause bubble formation during the melting phase; firing schedules should account for potential surface defects associated with gas evolution.