Calling Card Wet Film Thickness Gauge

This notched Wet Film Thickness Gauge is used for coating thickness measurement or film thickness of paints, enamels, lacquers, adhesives & many other wet coatings that are sprayed, dipped or brushed on a smooth surface. Sold in packs of 10. Features Calling card sized coating thickness gauge, 2-1/4 " x 3-1/4" x .034" Manufactured from aluminum Dual purpose gage with measurement scales in both mils and microns Paint thickness gauge can be kept as a record for the wet paint thickness taken or cleaned in solvents and reused Wide range and high resolution of the film thickness measurement ensures the gauge caters to all of the wet film measurements required by user Meets ASTM D4414 "Standard Practice for Measurement of Wet Film Thickness of Organic Coatings by Notched Gauges." Standard used is traceable to NIST Procedure Place gauge on wet film at 90° angle (perpendicular) Press into film Withdraw and note deepest tooth having paint on it and next higher tooth that is not