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Pretreatment and Posttreatment of Technical Springs

To ensure optimum adhesion of the spring coatings, the metallic surfaces must be free of grease, scale and rust. For this purpose, the technical springs are pickled. Either alkalis or acids are used for this process.

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Pickling of springs is done with acids to remove rust and scale. In combination with degreasing, a perfectly clean and pure surface of metal parts is achieved.


Annealing is a heat treatment of springs to remove the hydrogen on the surface. This serves to prevent fractures and is used as an aftertreatment mainly in electrogalvanizing.

You can find an overview of the standard industrial springs we produce on the Technical Springs page.

Would you like advice on which pre and post-treatment will achieve the best result for your coating?