The JPIA Chalking Evaluation Tape is made up of a clear protection film on a 3 section piece of tape. It has two tabs, a protective film and an evaluation area.
Features
Tape size: 37 x 95 mm (thickness 75µm)
Evaluation area size: 25 x 25 mm
Adhesion Strength: 550~650 mN/25mm (according to ISO 60454-2:1994)
Remove the protective film from the evaluation area and place the tape (adhesive side down) on testing coating surface, make sure to remove any air bubbles.
Stick tape on testing coating surface by finger or roller, the pressure should exceed 0.1 MPa (1kgf/cm2).
Then remove the tape and peel off the protective film for the tabs.
Place the tape (adhesive side down) on a substrate of appropriate color to give the greatest contrast.
Evaluate the degree of chalking by reference to the pictorial standards in ISO 4628-6.