180 Degree Peel Test of Metal Foil

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180 Degree Peel Test of Metal Foil

The 180 degree peel test measures the peel strength of metal foil when bonded to substrates and also metallic cladding. This test requires a universal peel test machine and lightweight grips. The 180 degree peel is similar to the 90 degree peel test except that the bonded area between the tape and plate is placed vertically between the peel test grips while the free end of the of plate is gripped at the bottom and the free end of the tape is gripped at the top so that it forms a tight “U” shape.