Micro-Metrics OG204 / OG214 Plastic Tooke Gauge IV
Micro-Metrics OG204 / OG214 Plastic Tooke Gauge IV

Micro-Metrics OG204 /OG214 Plastic Tooke Paint Inspection Gauge IV
This less expensive Tooke gage is identical to the OG212 Tooke Gauge, but made of molded polycarbonate plastic.
Precision tool for inspection and thickness measurement of single or multiple coats on any substrate.
The Micro-Metrics OG214 Plastic Tooke Gauge IV is a precision tool for inspection and dry-film thickness measurement (in accordance with ASTM D4138) of single or multiple coats on any substrate, and for microscopic observation and measurement of substrate and film defects. The OG214 Tooke Gage uses an illuminated 50-power microscope equipped with a universal scope with a measuring reticle that accommodates measurement in mils, microns, and millimeters. This gauge mounts tungsten carbide cutting tips for precise incision of the work surface. Direct measurement of total dry-film coating thickness and thickness of individual coats of paint is a unique capability of the Tooke Paint Inspection Gage. Thus, in addition to routine use, it often serves as a referee instrument to calibrate indirect or non-destructive thickness measuring instruments. Applications: The Tooke Gage has been used to assess sandblast cleaning work, to measure plating and paint thickness on ceramics, metal, wood, and concrete, and even to measure protective backing thickness on mirrors. It is virtually the only tool for measuring paint on plastics. The quality of the incision in the film discloses much about the characteristics of the brittleness and adhesion of the material. Other uses include assessment of substrate conditions and coating adhesion, and observation of microscopic cracking, tendency for brittleness, cratering, or other microscopic film symptoms.

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