Paint Thickness Gauges and Where Are They Used

Paint thickness gauge refers to a paint thickness measurement device that can measure the paint film thickness non-destructively using the measurement principles of magnetic attraction, magnetic induction, eddy current and ultrasonic. Due to the different measurement principles of the paint thickness gauge, the application scenarios of the paint thickness gauges with different measurement principles are also different.

1. Magnetic paint thickness gauge

The paint thickness gauge based on the principle of magnetic induction measurement can be used to measure the non-magnetic coating thickness on the magnetic metal substrate, such as aluminum, chromium, copper, enamel, rubber, paint on steel, iron, alloy, hard magnetic steel.

2. Eddy current paint thickness gauge

The paint thickness gauge based on the principle of eddy current measurement can be used to measure the non-conductive coating thickness such as enamel, rubber, paint, plastic on non-magnetic metal substrates such as copper, aluminum, zinc, tin, etc.

1. Why do we use paint thickness gauge in car inspection

(1) Paint thickness gauge can be used to detect the paint quality of new cars

We know that when the automobile manufacturer paints the outer shell or parts of the car, the outer shell base of the new car is relatively flat. If the paint film thickness on the substrate surface does not reach the standard, it will directly affect the appearance of the car first, which will cause a poor visual experience. The thickness of ordinary car paint is divided into three layers. The electrophoretic layer (cathode electrophoresis), middle coat and color paint layer. The electrophoretic layer is the most important layer of the three paint layers and has also become the primer. There are two functions: one is to prevent rust and the other is to improve the adhesion of the paint layer. 

2. Why do we use paint thickness gauge in other industries?

Paint thickness gauges are widely used in many industries due to their wide measurement range. For example, fire protection, anti-corrosion, water-based paint, enamel, etc. Let's take a look at fireproof coatings and anti-corrosion coatings as examples. The fire-resistant coating and the anti-corrosion coating are divided into many layers. If the coating is too thick, it will cause the coating to fall off. If the coating is too thin, it will affect the performance of fire protection or anti-corrosion. Therefore, a paint thickness gauge is required to detect the coating thickness.

1. Linshang classic and Bluetooth paint thickness gauges

Linshang LS220 paint thickness gauge is a professional paint thickness measurement device for used cars. The metal matrix of the car body outer shell is generally made of metal materials such as steel plate aluminum and carbon fiber. This paint thickness gauge adopts the measuring principle of magnetic method and eddy current method. It can measure the car paint thickness on iron and aluminum material and can identify non-metallic shell. 

LS220B paint thickness gauge adds Bluetooth function on the basis of LS220. The instrument transmits the measurement data to the mobile phone APP in time through the built-in Bluetooth function. The mobile phone APP can record the paint thickness values of different parts of the car. Linshang classic and Bluetooth LS220B paint thickness gauges : Roof, engine compartment cover, left front fender, left A-pillar, left front door, left B-pillar, left rear door, left C-pillar, left rear fender, trunk lid, right rear fender, right C Pillar, rear right door, right B pillar, right front door, right A pillar, right front fender. The Bluetooth paint thickness gauge can generate test reports. The test report can be stored as a picture and can be shared via QQ and WeChat.