DeFelsko Non-Certified Plastic Shims

DeFelsko Non-Certified Plastic Shims for operational checking of coating thickness instruments.

SKU: DEF-WORKINGSHIMS Category: Tags: ,

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Plastic Shims or Foils, simulate a coating over a substrate, making it possible to verify the accuracy of the gauge being used to take coating thickness measurements. Plastic Shims are suitable for use with Type 2 Coating Thickness Gauges (electronic gauges), but Type 1 gauges, using magnetic pull-off to determine coating thickness, require verification with Coated Metal Plates.

Working Shims are ideal for day-to-day, on-site verification that your electronic coating thickness gauge is measuring within the manufacturer’s tolerance for that instrument. A working shim can also be used to protect the probe tip from damage or premature wear by placing the shim over rough, abrasive surfaces and calculating or zeroing out the shim value from the thickness measurement. Working Shims can be placed on tacky, rough, or hot coatings to prevent the gauge probe from making impressions or deformities in the coating film while taking thickness measurements. Shims are labelled in both metric or imperial units.

DeFelsko’s Working Shims come in a package of 5 coloured films with nominal thicknesses of:

NOMINAL THICKNESS SHIM COLOUR ACCURACY
  25 µm/1 mil   Orange   + 20%
  50 µm/2 mil   Red   + 10%
  125 µm/5 mil   Blue   + 5%
  250 µm/10 mil   Brown   + 5%
  500 µm/20 mil   Yellow   + 5%
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