M390 Casting
Description
Code numbered L4005D. We do not produce this as a product, but we publish its recipe and preparation information. It is important to understand the principles of deflocculation, be able to measure specific gravity effectively and have a good propeller mixer.
Firing
M390 Casting fired bars (cone 4 to 8 bottom to top). Cone 6 finds the color at its warmest. Fired porosity is 2.5% at cone 6, the same as regular M390. Fired to cone 7 will maintain some color and reduce porosity to 1.5%.
