Casting Powder

SiO230 - 33%
CaO28-30%
Al2O34 - 6%
Na2O/K2O5-7%
MgOMgO
Li2O1 – 1.5%
B2O31 -2%
C free18-22%
Melting Point (+/- 20 0 C) -1004° C, Viscosity at 1300O C – 4-6 Poise