Coating Thickness Gauge: - A brief description

Dry film thickness or coating thickness is an important variable that plays a significant role in product quality, process control, and cost control. Correct coating thickness ensures optimum product performance. Regular dry film thickness measurement with the coating thickness gauge helps to control material cost, manage application efficiency, maintain finish quality and ensure compliance with contract specifications. Usually, coating thickness gauge is a measuring instrument for non-destructive investigation of a material's thickness. The dry film thickness is measured on magnetic steel surfaces or non-magnetic metal surfaces such as stainless steel or aluminum using a coating thickness gauge.

The usage of the coating thickness gauge for non-destructive testing to check material properties is utilized in all areas of industrial measurements. The ranges of coating thickness gauge available in the market are paint thickness gauge, ultrasonic coating thickness gauge, digital thickness gauge, mechanical coating thickness gauge, mechanical coating thickness gauges, electromagnetic induction coating thickness gauge, eddy current coating thickness gauge and many more options. These instruments are used to test plastics, glass, ceramics, metals and other materials. The instruments are also used for monitoring pipelines. Along with the measurement of coating thickness the devices are widely being used for wall thickness for plastics, wood, glass and also serve as major testing equipment in the corrosion industry. The coating thickness gauges are used to monitor steel thickness in various places of ships and offshore constructions. Surveyors equipped with portable coating thickness gauges measure the thickness of steel plating insides, tanks, decks, and the superstructure.

Key features of advanced coating thickness gauge:-

•    Reliable
•    Good accuracy
•    Precisely engineered
•    Can easily operate
•    Portable and convenient to carry
•    Rapid measurement and excellent repeated performance
•    LCD digital display
•    Manual or automatic shut down and has an accurate indication of power.
•    Data saving option is available.
•    A time tracking system is available.
•    A USB interface is available.
•    High and low reading limit indicators.
•    Factory calibrated for immediate use.
•    Measures accurately on smooth, rough, thin and curved surfaces.
•    Increased reading resolution for thin coatings.
•    Temperature stable measurements.

How to test a Coating Thickness Gauge for accuracy?

It is important to have traceable coating thickness standards in order to test the accuracy of a particular gauge. First, the gauge is adjusted to zero on an uncoated smooth substrate and set to a known thickness standard at or near to the maximum thickness. Then the intermediate thickness standards are measured and the readings compared to the actual thickness of the standard. The results are the differences between the values of the reading and the value of the standard. The results are easily expressed as a percentage of the reading.

What is the importance of coating thickness gauge calibration?

Calibration is the process where a coating thickness gauge sets-up, during manufacturing, to ensure required accuracy specification. Normally the procedure requires the coating thickness gauge to be set to known values of thickness and checked on intermediate thickness values.

A wide range of coating thickness gauge in Malaysia to suffice the divergent requirements of the clients and can be used in accordance with international standards. The entire range is supplied with fully traceable test certificates. With user-selectable calibration methods, these coating thickness gauges are very cost effective.

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