Replica tape for measuring blasted surface profiles. By placing the Tqc replica 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.
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1. |
TQC Replica tape consists of a layer of compressible foam affixed to an incompressible polyester substrate. |
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2. |
When pressed against a roughened/gritblasted (steel) surface, the foam collapses acquiring an impression of the surface. |
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3. |
Placing the compressed tape between the anvils of the SP1570 micrometric thickness gage, and subtracting the contribution of the incompressible substrate (50 micrometers or 0.002 inches), gives a measure of the surface profile. |
One box of Testex contains tape for 50 measurements.