Never use cheap polymers and take care of how the polymers supplier is facing you. We have seen excellent plastic coatings onto heat exchangers surfaces. And it was terpolymers supplied by a very known manufacturer. We came to the conclusion, even when it was a matter of reputable company, which we have to trust nobody. And we are checking every delivered batch. We are running the "evaluate your scale inhibitor" procedure, which is actually demonstration of the CD properties.

A few words about terpolymers. A terpolymer is a copolymer consisting of three distinct monomers. The term is derived from ter (Latin), meaning thrice, and polymer. A terpolymer contains three functional groups: strong acid (sulfonate), weak acid (carboxylate), and a nonionic that provide optimal dispersancy for most particulates under a broad range of operating conditions.

By this procedure is acting as scale inhibitor, antifoulant and dispersant at the same time, at the same molecule. Unfortunately, as in reality, when you are targeting many targets instantly, you achieve no-one.

As for scale inhibition, it is very good to protect a system which has not scale tendencies. These products’ design is based to North US, Canada, UK and Germany conditions, where the problem is not scales, but corrosion. And this is the 95% of the worldwide market.

p.e. In UK they are pumping the water from the rivers and they are feeding after deaeration to HP boilers, without DM, RO or even softening, because they have less than 5 ppm TH in Scotland. Unfortunately in Mediterranean area and in South Asia we have more than 1200 ppm Ca in the raw waters. And we cannot survive without excellent CDs

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