ASTM D5179 covers the laboratory determination of organic coating adhesion to plastic substrates by mounting and removing an aluminum stud from the surface of the coating and measuring the force required to break the coating/substrate bond with a tensile tester. The pull-off strength or adhesion of a coating is an important performance property that has been used in specifications. ASTM D5179 serves as a means for uniformly preparing and testing organic coatings on plastic substrates.

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