Active Minerals International produces Acti-Gel® 208, a low-dose rheology modifier and anti-settling agent that provides superior aggregate suspension and stabilizes mixtures. Acti-Gel® dramatically improves the workability, flowability, pumpability and performance of concretes. Acti-Gel® 208 is made from a highly purified Mg-aluminosilicate using a process patented by Active Minerals International. It is non-swelling and shear stable in both low and high salt environments and between pH 2-13