ISO 22553-6-2019 Paints and varnishes – Electrodeposited coatings – Part 6: Entry marking

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ISO 22553-6-2019 Paints and varnishes – Electrodeposited coatings – Part 6: Entry marking

1 Scope of application
This document specifies a method for identifying entry marks that may occur during the electrodeposition coating process. When a work piece set as a cathode or anode is immersed in an electrodeposition tank at an applied potential (the relationship between voltage and current), the entry mark will usually appear as a stripe. These marks appear parallel to the bath surface on the object to be coated.

It is suitable for electrodeposited coatings in the automotive industry and other general industrial applications, such as chiller, consumer products, radiators, aerospace, agriculture.

2 Normative reference files
When the following documents are referenced in the context, part or all of them constitute the requirements of this document. For dated references, citation-only versions apply. For undated citations, the most recent version of the referenced document (including any amendments) applies.

ISO 1514, Paints and varnishes — Standard plates for testing

ISO 2808, paints and varnishes – determination of film thickness

ISO 4618, paints and varnishes — Terms and definitions

ISO 22553-1, Paints and varnishes – electrodeposited coatings – Part 1: Vocabulary

ISO 23321, Paints and varnishes solvents – softening water for industrial applications – Specification and test methods

ISO 22553-6-2019 Paints and varnishes – Electrodeposited coatings – Part 6: Entry marking

3 Terms and Definitions
For the purposes of this document, the terms and definitions given in ISO 4618, ISO 22553-1 and below apply.

3.1 Starting voltage

Electrodeposition coating materials where deposition is no longer continuous, for example, film thickness, gas formation, or thermal development undergo significant changes

Entry Note 1: Starting voltage can only be determined experimentally through the electromotive force series.

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