How to Protect Water Tanks from Corrosion

July 22, 2020 10:52 pm Published by Leave your thoughts

Your water tank is just as susceptible to corrosion and other issues on the outside as it is on the inside. Corrosion is a major problem for water tanks and other structures, since it can shorten the vessel’s lifespan and increase the possibility that other substances will contaminate your water.

Dealing with water tank corrosion in Colorado can be a problem, but a high-quality coating will help fix the issue. Most importantly, abrasive blasting your water tank will help prepare it to receive the coating better, extending the lifespan of your water tank and keeping the supply safe for years to come.

Why do water tanks corrode?

Water tanks can last for decades—the average lifespan is about 60 years—and today’s coatings can help protect the metal inside from corrosion without giving off dangerous VOCs or contaminating the water. However, if the coating degrades, the metal inside is susceptible to corrosion when the iron content oxidizes. This, in turn, degrades the metal and can cause leaks or contamination.

How can I protect my water tanks?

There is a wide variety of new, environmentally-friendly coating options for your water tank’s interior and exterior. Depending on your area’s climate as well as specific needs, one type of coating may be more advantageous than another—make sure to talk to water tank maintenance experts in Colorado to determine which is right for you.

Here is an overview of the different types of water tank coatings, including their most important benefits:

  • Exteriors: Exterior coatings need to be able to stand up to the elements, especially UV light, and remain flexible. Acrylics tend to be the best choice for exteriors, thanks to their corrosion and chemical resistance. Many owners feel that they are a superior choice to traditional polyurethane coatings.
  • High solid polyurethanes: High solid polyurethane coatings are becoming more popular thanks to their ability to meet today’s lower VOC emission standards. This coating has all but replaced lead-based alkyds.
  • High solid epoxy mastics: This is a good barrier coating because it offers a good deal of moisture, salt, acid and other resistance. Even better, it can be applied to barely-cleaned surfaces with a good adhesion rate. It is also effective in creating a barrier for coatings that contain lead.
  • Waterborne epoxy: This type of coating is water based, but still manages to produce a coating that protects against corrosion while adhering to the surface very nicely. This coating type protects against moisture and acidity, making it a good exterior and interior coating.

All of these environmentally-friendly coatings are safe, effective and can protect your water tank against damage from the elements and other sources. Interested in learning more about how to protect and maintain your water tank in Colorado? The experts at DJC Enterprises Inc. are here to help. Since 1984, our crews have been your source for sandblasting, painting, maintenance and hauling services. Get in touch with us today to learn more about our services. We look forward to working with you soon.

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