The platinum modified, high silver, non-gamma 2 spherical amalgam. Lojic+ has exceptional early strength, smooth handling and excellent polishability. The alloy to mercury ratio varies between 1/0.73 and 1/0.78 depending on the size and setting time, i.e. 42.2% to 43.8% by weight mercury. The compressive strength of Lojic+ at 24 hours is 520 MPa, and the dimensional change during hardening is -0.04%