The crosshatch paint adhesion test kits also have the one edge blade option to comply with the appropriate ASTM and ISO coating adhesion test methods.
ASTM D 3359 Standard describe, that the number of cuts shall be 6 or 11. The spacing of the cuts in each direction
shall be equal and shall depend on the thickness of the coating as follows:
11 cut lines for 1 mm/1.5 mm cutter used at film thickness up to 50 µm (2 mils)
6 cut lines for 2 mm cutter used at films thickness between 50-125 µm (2 - 5 mils)
Adhesion is of utmost importance for surface coatings to guarantee effective corrosion protection and resistance to physical damage. In practice, various testing methods are used to evaluate adhesion properties.Read more