Cross Hatch Kit, single blade

• Make a lattice pattern in the film with the appropriate tool, cutting to the substrate
• Brush several times lightly backwards and forwards, using a soft brush or tissue to remove any detached flakes or ribbons of coatings
• Place a tape over the cut, smooth it fimrly with a fingertip and remove the tape
• Examine the grid area using an illuminated magnifier

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 50μm (2 mils) 
6 cut lines for 2 mm cutter used at films thickness between 50-125μm (2 - 5 mils)