Measuring the adhesion strength of coatings such as paint, glue, varnish etc., is necessary to ensure the coating has bonded well to the substrate and is performing satisfactory. A variety of adhesion testing methods are available to determine how well the coating is bonding to the solid substrate.
The Cross Hatch Test Method is widely used to assess the adhesion of paint coatings and provides an instant assessment of the quality of the bond to the substrate. The cross hatch test is a visual comparison method for paint and powder coatings up to a thickness of 250µm (10mils) which is fast and easy to use. The coating is cut into small squares, thereby reducing lateral bonding, and the coating adhesion assessed against ISO 2409 and ASTM D 3359 or Corporate Standards.
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