What is the instrument for measuring car paint thickness?
3 Answers
Measuring (car) paint thickness instrument is called a paint thickness gauge. The paint thickness gauge can measure the thickness of non-ferromagnetic coatings and platings on ferromagnetic metal substrates such as steel and iron, thereby determining the paint thickness. Below is relevant information: Principle: The probe located on the surface of the component generates a closed magnetic circuit. As the distance between the probe and the ferromagnetic material changes, this magnetic circuit will alter to varying degrees, causing changes in magnetic resistance and the inductance of the probe coil. This principle is used to precisely measure the distance between the probe and the ferromagnetic material, i.e., the coating thickness. Function of the paint thickness gauge: Simply put, it can non-destructively measure the paint coating thickness of used cars, using this to determine whether the car's paint has any signs of repair. Not only can it measure the thickness of the paint, but it can also inspect the material of the covering parts and check whether the covering parts have been replaced.
I used this instrument frequently when working at the auto repair shop. It's called a paint thickness gauge, a handheld device resembling a small probe. It's particularly convenient for checking the thickness of a car's coating, especially when dealing with used accident vehicles. Simply press the gauge gently against the paint surface, and it displays a digital reading in microns. Factory paint is typically maintained between 80-120 microns. If certain spots measure over 150 microns, it might indicate a repaint, suggesting hidden accident damage. It's essential to clean the paint surface before measurement to ensure accurate readings. I always make a habit of checking multiple spots to compare uniformity. I recall a BMW that came in for repairs—uneven thickness revealed previous repair work, helping the client avoid greater losses. This tool is a reliable assistant in my daily work—simple, efficient, and worry-free, also preventing potential repainting issues later on.
Last time I bought a car, I used this thing called a paint thickness gauge. It's a compact handheld device that helps me quickly check if the paint thickness is consistent, preventing me from buying a repaired accident car. I spent a bit of money on an economical model. The operation is simple: turn it on, calibrate the zero point, and then place it on different spots of the car body to take readings. Factory paint should be between 80-120 microns. If certain areas, like the doors, measure significantly thicker, it's definitely not in new condition. I recommend buying a magnetic induction type, which is suitable for iron-based car bodies—accurate and durable. Using it eliminates the risk of being scammed and gives you more confidence when negotiating the price. Now, every time I help a friend inspect a car, I bring one along. It's easy to use, but you should focus on the overall differences rather than just the numbers.
