ISO 4628-8 Paints and Varnishes - Evaluation of Deterioration of Coatings - Part 8: Evaluation of Delamination and Degree of Corrosion Around a Scratch or Other Artificial Defect

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of ISO 4628-8 testing. This part of ISO 4628 specifies a method for assessing delamination and corrosion around a line or artificial defect on a coated panel or other coated test specimen caused by a corrosive environment. This part of ISO 4628 does not cover pitting corrosion or pitting depth assessment.

Examples of corrosive environments are artificial atmospheres such as salt spray as used in the test method specified in ISO 9227 and immersion in seawater as used in the test method specified in ISO 15711. Natural environments can also be used.

ISO 4628-1 defines a system for determining the amount and size of defects and the density of uniform defects. It summarizes the changes in the appearance of the coatings and the general principles of the system.

This system should be used specifically for defects caused by aging and weathering and for uniform changes such as color changes such as yellowing.

Other parts of ISO 4628 provide pictorial standards or other tools for assessing certain types of defects. As far as possible, already existing assessment schemes were used as the basis.

Delamination and corrosion around the scratch or other artificial defect are evaluated separately to provide more.

EUROLAB assists manufacturers with ISO 4628-8 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.