Protecting Petroleum Storage Tanks from Corrosion: Why Silicone Coatings Outperform Traditional Systems


Protecting Petroleum Storage Tanks from Corrosion: Why Silicone Coatings Outperform Traditional Systems

The Hidden Challenge of Tank Integrity

Petroleum storage tanks are built to last—but the environment they operate in is relentless. Coastal humidity, chemical vapours, and aggressive acids used in refining processes create the perfect storm for corrosion. Every day, tanks face risks that compromise structural integrity and safety.

When corrosion takes hold, the cost isn’t just maintenance—it’s downtime, compliance issues, and potential environmental hazards. For operators managing large-scale storage facilities, prevention is far more cost-effective than repair.


Why Silicone Coatings Are the Smart Choice

Traditional epoxy systems have been the go-to solution for decades, but they come with limitations:

  • Multiple coats and primers increase labour and downtime
  • Rigid films crack under thermal cycling
  • Limited chemical resistance leads to premature failure

SI-COAT 579 CM changes the game. This high-performance silicone coating is engineered for extreme chemical environments, delivering protection where conventional systems fail.


Technical Advantages of SI-COAT 579 CM

  • Exceptional Acid Resistance: Withstands sulphuric acid exposure in leach tanks and pipelines
  • High Chemical and UV Stability: Performs in aggressive chemical and outdoor conditions
  • Long-Term Durability: Extends service life of steel and concrete assets, reducing lifecycle costs
  • Primerless Application: Bonds directly to clean steel surfaces, simplifying application
  • Fast Drying, Low VOC: Environmentally responsible and efficient

Applications in Petroleum Storage

  • Above-Ground Tanks: Protection against chemical attack and moisture ingress
  • Tank Roofs and Shells: Resists corrosion under harsh weather and vapour exposure
  • Containment Areas: Adds a barrier against aggressive environments

Lifecycle Cost Advantage

Investing in advanced coatings like SI-COAT 579 CM isn’t just a technical decision—it’s a financial strategy. By reducing maintenance cycles and preventing catastrophic failures, silicone coatings deliver significant savings over time.


Frequently Asked Questions (FAQ)

Is SI-COAT 579 CM suitable for petroleum tanks?
Yes. It’s designed for extreme chemical environments, including petroleum storage facilities.

Does it resist sulphuric acid?
Absolutely. SI-COAT 579 CM offers exceptional resistance to acids and aggressive chemicals.

How long does it last?
Typically 15–20 years with minimal maintenance, outperforming traditional epoxy systems.

Can it be applied without a primer?
Yes, on clean steel surfaces. For heavily corroded areas, proper surface preparation is essential.


Ready to protect your tanks and reduce lifecycle costs?
Contact Technical Solution Supplies today for technical specifications and supply solutions. Proud distributors of CSL SILICONES products.


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