The walnut sand, supplied by Dragon Abrasives, which is made from walnut’s broken shell. It is widely used for the surface cleanness and water treatment.
1 Environmental. It is nontoxic, harmless, safe and clean.
2 Economical. It could be reused.
3 Good toughness and elasticity.
4 Could be used together with Silicon Carbide.
Mosh Hardness: 2.5-3.0
specific gravity: 1.28 PH: 4-6