-16276-1 - Pdf Iso

To ensure these coating systems perform as intended, asset owners and quality control inspectors rely on standardized testing methods. International Standard is a critical benchmark in this domain. It outlines the protocols for assessing the fracture strength (adhesion) of protective paint coatings using pull-off testing. What is ISO 16276-1?

It is not just about how many MPa you pull—it’s about where the coating breaks and whether that failure mode is tolerable for long-term corrosion protection.

A hollow hole-saw or scoring tool is used to cut through the coating layer down to the steel substrate around the perimeter of the dolly. This isolates the test area and ensures the force applied acts purely on the area directly beneath the dolly face. Step-by-Step Testing Procedure pdf iso -16276-1

The break occurs between layers of paint or between the first paint layer and the steel substrate.

The molecular binding forces occurring at the physical interface between the steel and the paint layer, or between two independent coats. To ensure these coating systems perform as intended,

When steel is prepared for the application of paints or related products, it is critical that the surface cleanliness is up to standard to ensure proper adhesion and corrosion resistance. ISO 16276-1 provides a method for:

Inter-coat adhesion failure between the first and second coats. Glue/Adhesive Failure What is ISO 16276-1

is an international standard titled "Corrosion protection of steel structures by protective paint systems — Assessment of, and acceptance criteria for, the adhesion/cohesion (fracture strength) of a coating — Part 1: Pull-off testing."