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Processing & Handling :: Liquid, Gas and Air Handling :: Tanks & vessels

February 15, 2008

Tank Coatings: Covering the Basics of Selection and Specification

Good quality coatings can make all the difference where corrosion and chemical compatibility are concerned

Peter Vodak, CST Industries/Columbian TecTank

The interior surfaces of your storage tanks are constantly at risk. If you walk past a tank often without giving thought to what is happening on the inside, it is because you trust the interior coating to protect not only the storage vessel, but also to protect the product being stored from any corrosion that might occur on the tank.

Without a doubt, corrosion is the principal enemy of a storage vessel. It shortens a tank’s lifespan incrementally and increases the possibility of contamination. Dry bulk products are often abrasive to the tank walls, requiring a strong coating to resist scratches and gouges, which expose the steel to corrosion. In addition, liquids are particularly aggressive, so the coating found on the interior of the tank is essential when it comes to protecting a tank against the harmful effects of corrosion.

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