One of the most popular methods of measuring surface profile using a replica tape, or press-o-film, such as the Elcometer 122 Replica Tape, together with a micrometer thickness gauge, such as the Elcometer 124 thickness gauge.
The Elcometer 122 Replica Tape consists of a foam pad attached to a non-compressible 2mil / 50μm mylar backing strip and provides a very easy method of measuring surface profile. The Elcometer 122 tape is particularly useful when measuring surface profile of curved or hard to reach areas.
Simply place the tape with the foam pad onto the surface and rub the backing with a burnishing tool (swizzle stick) until it turns uniformly grey.
Once a replica of the profile is taken, use the Elcometer 124 Thickness Gauge to measure the peak-to-valley height of the surface profile. Using the Elcometer 124 Thickness Gauge is incredibly easy.
Using the value displayed by the Elcometer 124, subtract the original thickness of the non-compressible mylar backing (2mil / 50μm) to get the surface profile measurement. To get the most accurate reading, zero the Elcometer 124 Thickness Gauge to offset the original tape window thickness.
The Elcometer 124 Thickness Gauge is available as either a metric or imperial model; and used in conjunction with the Elcometer 122 Replica Tape, provides an ideal method for measuring surface profile in compliance with International Standards. And if a permanent record of the surface profile is required, you can store the replica tape in your manual report as a proof of test.
For more information on the Elcometer 122 Testex Replica Tape or Elcometer 124 Thickness Gauge, please contact Elcometer at sales@elcometer.com, or visit our website.
Elcometer 122 Replica Tape: www.elcometer.c...
Elcometer 124 Thickness Gauge: www.elcometer.c...
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STANDARDS:
Elcometer 122
ASTM D 4417-C, BS 7079-C5, ISO 8503-5, NACE RP0287, SSPC PA 17, US Navy NSI 009-32, US Navy PPI 63101-000
Elcometer 124
ASTM D 4417-C, ISO 8503-5, NACE RP0287, SSPC PA 17, US Navy NSI 009-32, US Navy PPI 63101-000