ISO 1520 Paints and Varnishes - Pitting Test

EUROLAB laboratory provides testing and compliance services within the scope of ISO 1520 standard. ISO 1520 specifies an experimental test procedure for evaluating the resistance of a coating of paint, varnish or related product to cracking or separation from a metal substrate when subjected to gradual deformation by indentation under standard conditions.

For a multi-level system, each floor can be tested individually or the entire system can be tested.

The method can be performed as follows:

• Either as a 'pass/fail' test, by testing to a certain depth of indentation to assess compliance with a particular requirement;
• Or by gradually increasing the indentation depth to determine the minimum depth at which the coating cracks or separates from the substrate.

The tested product or system is applied in equal thickness to flat panels with a homogeneous surface texture. After drying/curing, the elastic properties of the paint film are determined by first placing the coated panel between two rings, namely the retaining ring and the drawing die. The panel is then pushed against the test piece at a constant rate by a hemispherical recess, forming a dome shape with the coating on the outside.

The deformation is increased either to a certain depth or until the coating cracks or separates from the substrate, and then the result is evaluated.

EUROLAB assists manufacturers with ISO 1520 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.