Technical

Rust conversion

The Tanex range of products is widely used in the formulation of acidic rust converter formulations. They can be used to formulate both resin-free pre-treatment solutions and acid-compatible water based film forming formulations.

By binding and converting poorly adhering iron oxides into more stable iron tannate complexes tannic acid based pre-treatments improve anti-corrosion resistance of new or old cast iron or iron work surfaces.

Boiler water treatment

The following tannic acid properties are of concern for water treatment purposes:

• Oxygen scavenging
• Preventing scale formation
• Metal complexation

The Tanex range combines these 3 properties in one product, therefore allowing for simple formulated end products containing as few raw materials as possible.

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