Inorganic phosphates - ortho-phosphates, poly-phosphates, pyro-phosphates - are used to control corrosion in cooling water systems. Poly-phosphates and pyro-phosphates have a tendency to revert to ortho-phosphates that reacts with the hardness present in water to form a scale or sludge.

High efficiency polymers are required to stabilize these so that their corrosion inhibiting properties are made use of without the problem of scale formation and fouling.

Products Recommended:

Maxinol C4200 - 43 % acrylic-sulphonic acid co-polymer, partially neutralized
Maxinol 4000C - 45 % acrylic-non ionic co-polymer, partially neutralized