introduction
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ISO 22553-16-2022 – Electrodeposited coatings for paints and varnishes – Part 16: pigment-binder ratio

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This document was prepared by Technical Committee ISO/TC 35, Paints and Varnishes, Subcommittee SC 9, Common Test Methods for paints and varnishes.

A list of all the parts in the ISO 22553 series can be found on the ISO website.

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introduce
The electrodeposited coating material (e-coat) consists of a pigment paste and an adhesive. The test method determines the ratio of two components in the electrodeposited coating material.

When determining ash, there is always a certain percentage loss (burning loss), and then the pigment content is added. Therefore, ash and pigment content cannot be equated. This is taken into account by product-specific correction factors.

The ratio of pigment to adhesive is a key characteristic that controls the electrophoresis tank.

ISO 22553-16-2022 – Electrodeposited coatings for paints and varnishes – Part 16: pigment-binder ratio

1 Range
This document specifies a test method for determining the pigment-binder ratio.

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

2 Normative reference documents
When the following documents are referenced in the text, some or all of them constitute the requirements of this document. For dated references, only the cited version applies. For undated citations, a new version of the referenced document (including any revisions) applies.

ISO 1513, Paints and varnishes – Inspection and preparation of test samples

ISO 3251, Paints, varnishes and plastics – Determination of the content of non-volatile substances

ISO 4618, paints and varnishes – terms and definitions

ISO 15528, Paints, varnishes and raw materials for paints and varnishes – Sampling

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

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

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