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Testex Tape

  • Testex tape is used for measuring blasted surface profiles known in industry as press-o-film or replica tape.
  • By placing the tape on the surface and rubbing over it, the Rt (total roughness) or peak-to-valley height of the profile can be taken and then measured with a film thickness meter.
  • Consists of a layer of compressible foam affixed to an incompressible polyester substrate.
  • When pressed against a roughened/grit blasted (steel) surface, the foam collapses acquiring an impression of the surface.
  • One box of Testex contains tape for 50 measurements.

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