Can Coating

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Canning of foods and beverages is currently considered to be a principle method of food preservation and storage. Thus, it is very important to keep up with protective properties that enhance the performance of cans.

In can coating technologies, a wash coat is used to provide high chemical resistance, hardness, flexibility and gloss of can caps and closures. The wash coat is prepared by diluting an acrylic substance in water. The mixture is applied to the outside of the cans in order to protect them from oxidation before the labels are applied. For the preparation of a wash coat, the wash coat concentrate is diluted with water in a mixing tank to a certain concentration.

It is important to monitor the wash coat concentration. Vaisala K-PATENTS® Process Refractometer PR-43-GC is installed in the wash coat dilution tank to monitor continuously the concentration of wash coat material.

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Can Coating

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