Adhesion Test on Paints by Tape Test
Painting Inspection, Adhesion Test, QC Training, QC Course X Cut Test (This Document) Cross Cut Tape Test Method A – X Cut Tape Test An X-Cut is made on the Dry Paint until the bare substrate , a pressure sensitive adhesion tape is applied over the X cut and removed , the adhesion test is assessed between a scale of 0 to 5 . Instruments used: Sharp Razor Blade / Knife (The cutting edge to be in a good condition, Cutting Guide -Any scale to guide the knife to make straight cut Brush to clean after cut Adhesion Tape- Semi Transparent of Width 25mm or 1 inch. Rubber Eraser – on end of the pencil Torch Light or Lamp Test Procedure: Select an clean and defect free area for test (note: do not carry out test in extreme humidity and temperature) Make Two cross cuts of 40mm length with intersecting angle of 30 to 45 ° and the line should intersect in the middle, refer the image above , Use a torch light/ lamp to ensure that the cut has penetrated until the metal substrate, if ...