ADD APT Anticor PL Blend of mono-and di-phosphate ester and surface active ingredients ADD APT Corrosion inhibitor Soluble in mineral oil and esters ADD APT Anticor PL is a solvent-free, ester and mineral oil soluble corrosion inhibitor. It is a proprietary mixture of mono-and di-Phosphate ester and surface active ingredients. Easy to handle liquid It has surfactant properties with minimal foaming properties It improves both the storage and mechanical stability of an emulsion system. Solvent-free, phosphorous based corrosion inhibitor. Offers surfactant properties and minimal foaming properties. Improves storage and mechanical stability of emulsion system.