EzyPHPA is a chemically modified Partially Hydrolysed Polyacrylamide designed to retain the functionality of conventional PHPA while exhibiting enhanced resistance to calcium. The chemical structure of PHPA is modified in EzyPHPA to reduce its susceptibility to cross-linking when exposed to calcium ions. This modification involves increasing the degree of hydrolysis of the acrylamide polymer. As a result, the distribution of carboxyl groups along the polymer chain becomes more widespread. This strategic spacing effectively reduces the number of potential sites available for cross-linking with calcium ions, thus enhancing the polymer’s performance in environments with calcium contamination.