07 June 2023

Advantages of Filming Amines Over Standard UK Chemical Treatment in Closed Circuit Water Systems

Water is a vital resource for many industries, including power generation, manufacturing, and HVAC systems. However, maintaining the quality of water in closed-circuit systems can be a challenge. Traditional chemical treatments have been used for decades to prevent corrosion and scale buildup, but they have limitations.

In recent years, filming amines have emerged as a promising alternative for water treatment. This blog post will explore the environmental benefits of using filming amines over traditional chemical treatments for closed-circuit water systems.

Understanding Closed-Circuit Water Systems

Closed-circuit water systems are used in a variety of applications, including cooling towers, boilers, and heating systems. These systems are designed to circulate water continuously, which helps to maintain consistent temperatures and prevent contamination. However, over time, the water can become contaminated with impurities such as minerals, bacteria, and algae, which can lead to corrosion and scale buildup.

To prevent these issues, water treatment methods are used to purify the water and protect the system. Traditional chemical treatments, such as biocides and scale inhibitors, have been used for many years. However, these treatments have limitations. For example, they can be harmful to the environment, require frequent maintenance, and may not provide adequate protection against corrosion.

Advantages of Filming Amines

Filming amines are a newer water treatment solution that has gained popularity in recent years. These chemicals work by forming a protective film on the metal surfaces in the system, which helps to prevent corrosion and scale buildup. The film is self-repairing, which means that it can continue to provide protection even if it is damaged.

One of the key advantages of filming amines is their environmental benefits. Traditional chemical treatments can be harmful to the environment, as they can contain toxic chemicals that can leach into the surrounding soil and water. Filming amines, on the other hand, are non-toxic and biodegradable, which makes them a safer and more sustainable option.

Another advantage of filming amines is that they can reduce system downtime. Traditional chemical treatments require frequent maintenance and monitoring to ensure that they are working effectively. This can result in system downtime and lost productivity. Filming amines, on the other hand, require less maintenance and monitoring, which can reduce downtime and improve efficiency.

Finally, filming amines can be more cost-effective than traditional chemical treatments. Although the upfront cost of filming amines may be higher than traditional treatments, the long-term cost savings can be significant. By reducing corrosion and scale buildup, filming amines can extend the lifespan of the system and reduce maintenance costs.

Choosing the Right Filming Amine Solution

When choosing a filming amine solution, there are several key considerations to keep in mind. First, it is important to consider the type of system that will be treated. Different systems may require different types of filming amines, depending on the materials used and the water quality.

Second, it is important to consider the water quality. Filming amines work best in water with a pH between 7.0 and 9.0 and a hardness level of less than 500 ppm. If the water quality is outside of these parameters, a different treatment solution may be necessary.

Finally, it is important to consider the application method. Filming amines can be applied using a variety of methods, including injection, spray, and immersion. The application method will depend on the type of system and the specific needs of the application.

When evaluating different filming amine solutions, it is important to work with a water treatment provider who has experience with these chemicals. They can help to evaluate the specific needs of the system and recommend the best solution.


Filming amines offer several advantages over traditional chemical treatments for closed-circuit water systems. They provide improved corrosion protection, reduced system downtime, and lower maintenance costs. Additionally, they offer significant environmental benefits over traditional treatments. When choosing a filming amine solution, it is important to consider the type of system, water quality, and application method. By working with a water treatment provider, it is possible to select the best solution for the specific needs of the application.

Contact SMS Environmental's closed system department to discuss options or read more on the closed system services we offer.

We are also hosting a complementary CPD training event in June 2023 at the amazing Williams F1 Experience Centre in Oxfordshire. Join us to gain valuable insights into optimising your closed heating and cooling systems.

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