DoloPril is made of dolomite lime crushed to a very fine powder: 100% will pass a 30-mesh screen; 70% will pass a 100-mesh screen; and more than 30% will pass a 325-mesh screen. The powder is then constituted into spherical prills held together with a bonding agent. These prills are then sized into two products: regular - passes through a 4-mesh screen and over a 14-mesh screen, and fine - passes through a 14-mesh screen and over a 35-mesh screen.

DoloPril is not hygroscopic, however, in storage it must be protected from wetting. The binding agent used to make DoloPril is highly water soluble. Consequently, as soon as DoloPril prills come into contact with water, disintegration of the prill begins, and the many small particles which comprise the prill are released into the surrounding soil water medium and the reaction to correct soil pH begins.