Owing low filter loss with, Higgher bond, High viscosity strengght, To its higher swelling high yield value its requirement quantitatively is less than that of other bentonite, Thus not only saving money but eliminating expensive storage with less hanlding chargers. Specification physical properties foundry grade alka bond superior grade moisture @105 degree, 110 degree c 13 % max. 13 % max. 13 % max. Seive anlysis wet, 202 mesh 98 % min. 98 % min. 98 % min. Ph 6 % suspension 8. 8, 9. 5 9. 2, 9. 8, Swelling capacity 2gms/ 100cc 25 min. 28 min., Gelling time 10 % instantaneous instantaneous instantaneous mb value mg/gm of bentonite 370 min. 400 min. 420 min. Gel formation inex 55 min. 70 min. 80 min. Thermal stability, Half-off min. Sodium bentonite