The pull-off adhesion strength and mode of failure of a coating from a concrete substrate are important performance properties.

The pull-off adhesion test determines the maximum perpendicular force that a surface area can bear before a temporarily stuck plug of material is detached.

Note This test method is a destructive test and spot repairs are required.

The portable pull-off testers are capable of applying a concentric load and counter load to a single surface so that coatings can be tested even though only one side is accessible.

LMATS can perform this test in accordance with ASTM D7234.