When we buy a second-hand car, the worst situation we encounter is to buy an accident car or a water car, and the accident car is the most serious. In order to avoid buying an accident car, we often need to check and check the rigidity frame of the body , Which is what we often call the ABC column. We all know that the principle of the paint film meter is to perceive the non-metallic coating on the metal substrate through the probe, and then convert it into a numerical thickness through an algorithm, so as to help assessors and users to know the hidden dangers of the vehicle more accurately and quickly. So can the paint film meter judge the hidden danger of its frame by measuring the thickness of the paint on its ABC column?

The answer is yes. We all know that the paint thickness of normal vehicle structural parts is between 80-160μm. If the paint film meter value is far below this value, we can judge that the paint surface of the vehicle is polished. Polishing, if it is higher than 40μm of the average value of the vehicle, it can be judged as painting, and if it is higher than 100 microns, it can be judged as sheet metal. We can also use the value of the paint film meter to judge the hidden danger of the ABC column.

So is the thickness of the ABC column of the car the same as the paint thickness of the structural parts?

The answer is different. The ABC column is divided into the outer side and the inner side. The thickness of the outer side and the body paint often maintain the same thickness, but because the inner side is not directly exposed to the outside, it is rarely corroded by rain and aging by heat. Car companies will reduce the spray on the inside, so when we use the paint film meter to measure the ABC column, its thickness is often lower than that of the exterior car paint, often only about 70% of the thickness of the exterior car paint, about 80-40μm. .

How to use the paint film meter to judge whether the ABC column has hidden dangers?

You can know the approximate thickness through the paint film meter. It is recommended that you choose the Goou Bluetooth coating thickness gauge or the paint thickness meter with vehicle mode, which can count the average value of each component, which can greatly improve the efficiency of vehicle inspection.

We need to align the paint film meter on the relatively flat paint surface inside the ABC column for multi-point measurement. As shown in the red box above, whether the thickness of the detector is too high and whether it is uniform. If it is not uniform, there may be a possibility of car body cutting.