Linshang LS220 Paint Film Thickness Gauge is an automotive paint thickness testing instrument that does not need to be calibrated and can be tested with a simple zero adjustment. This article will demonstrate the testing process of LS220 automotive paint thickness.
The first step is to zero the instrument.
Zero adjustment demonstration: press the instrument vertically on the zero adjustment plate, keep it stable, press and hold the button on the instrument for 3 seconds, the instrument will prompt you to press the probe tightly for zero adjustment, and after hearing the beep, the instrument will prompt you to lift the probe by more than 15 cm , the operation is completed, you can hear the beep again, the screen displays 0.0, and the zero adjustment is completed.

Then you can directly test the car, also press the instrument vertically on the zero adjustment board, the data will be displayed immediately and the beep will be heard. After the paint Film Thickness Gauge measures the data, it is necessary to judge whether the test position has been repaired. The way to judge the repair is to first find the thickness of the car's original paint, and the thickness of the original paint within ±20um is a normal value.
First, measure the thickness of the roof. Generally, the roof will not be painted, so the thickness of the roof can be used as the standard for the thickness of the original paint. As shown in the figure below, press the instrument on the roof and immediately know the thickness of the roof of the car. It is 108um.

After finding out that the thickness of the original paint is 108um, you can start to measure the paint thickness of various parts of the car, such as measuring the door, hood, trunk lid, front fender, etc. Compared with the thickness of the roof, those within ±20um have not been repaired. As shown in the figure below, the thickness of the paint surface of the car door is 176um, far exceeding ±20um, which can be judged as repaired.

The above is the demonstration process of the LS220 paint Film Thickness Gauge measuring the thickness of the car paint surface, which can effectively detect whether the car paint surface has been repaired.
