Dual Scale Wet Film Gauge.

Calling Card Wet Film Thickness Gauges are for measuring wet film thickness of paints, enamels, lacquers, adhesives and many other wet coatings that are sprayed, dipped or brushed on a smooth surface. Meets ASTM D 4414 "Standard Practice for Measurement of Wet Film Thickness of Organic Coatings by Notched Gauges". This gauge is not certified. When ordered with certification, the standard used is traceable to NIST and complies with ANSI/NCSL Z540-1 or Mil Std 45662A. All Aluminum. Made in the USA.