Figure 9
Top: Adhesion tests conducted on TAPNC coatings over aluminum substrates with their ratings according to the ASTM D3359.
An adhesive tape is applied on the coating at a 45° angle relative to the cross-hatch cuts. After about one minute, the tape is peeled off and the sample is inspected. Middle: Indicative chart with damaged zone schematics, after the adhesion test, with their corresponding ratings according to the ASTM D3359. Bottom: (A) Optical microscope image of the scratch line before tape peel test. (B) Optical microscope image of the undamaged scratch line after tape peel test conforming to 2B Rating. The inset shows the undamaged edge details after tape peel.
