ISO 16276-1 standard provides a standardized method for assessing the adhesion and cohesion of protective paint systems on steel surfaces. This "pull-off" test is critical in industrial maintenance to ensure coatings can withstand environmental stressors without failing.
Provides a numerical value (MPa or psi) for the breaking point. pdf iso -16276-1
: Unlike laboratory standards (like ISO 4624), this standard is designed for on-site field assessment of existing structures. ISO 16276-1 standard provides a standardized method for
A small test cylinder (dolly) is glued to the paint surface. : Unlike laboratory standards (like ISO 4624), this
ISO 16276-1 specifies general requirements and test methods for determining the resistance of materials or products to accelerated ageing by oxidation (thermo-oxidative ageing) using specified test conditions. It defines test specimens, conditioning, test parameters, and how to report results so that ageing comparisons are reproducible.
Inspectors are often in a hurry. If you do not cut the dolly free, you are potentially testing the strength of the coating surrounding the dolly. This yields artificially high results (maybe 8 MPa) that hide a true adhesive failure (which would be 2 MPa).