The addition of sand to 52 Buff increases its strength and workability, making it a better choice for medium sized pieces.The texture is medium coarse. The fired color is the same as 52 Buff.
Wet Color: Buff
Firing Color: Oxidation: Buff , Reduction: Yellow/Brown
Texture: Slightly Coarse
Penetrometer Target: 6.75
Avg. Shrinkage 2±%: 9.0%
Avg. Water Absorption 1±%: 3.5%
COE x 10-6: 4.725