Hardware coating thickness measurement

Coating measurement of hardware components—a must-have for mil thickness tester

Abstract: The surface of hardware parts is often sprayed with a layer of paint to protect the internal metal and prevent outside air and oxidants from entering. Paint coating thickness gauge can be said to be a must-have artifact in the hardware manufacturing industry.
In the traditional sense, hardware materials refer to five metals: gold, silver, copper, iron, and tin. With the development of manufacturing technology and technology, hardware components in modern society are often sprayed with paint on the surface to meet the needs of different construction projects. Many hardware furniture, daily-use hardware components, and engineering hardware components flood the market. The paint coating thickness gauge is the most objective tool for detecting the paint thickness on the surface of hardware components.
First of all, we need to understand the difference between the hardware paint layer and the ordinary paint layer. The main difference between metal paint and plastic paint is: metal paint is mostly oil-based paint, and it is sprayed by baking paint. The plastic paint is generally based on water-based paint, which is more environmentally friendly. In addition, hardware paint is more colorful than plastic paint. The rich color nature of hardware paint determines that we can refer to any color to call out the color, which can be shaped according to the shape of the hardware component, but we are afraid of scratching. Generally speaking, we use a spray gun to spray a thin layer of paint on the board ( With the help of mil thickness tester to measure the thickness of the paint layer), this paint layer has excellent adhesion, abrasion resistance and excellent resistance to external impact. In addition, it also has excellent resistance to water, salt spray, and humidity. Features.
Before spraying the paint film, workers in the hardware parts industry will clean and remove rust, degrease, and soak the base material of the metal parts with adhesion promoters (the time of soaking varies depending on the material), and apply primer, three times on the base material. Four coats of paint (final thickness needs to be measured with a paint coating thickness gauge), and each coat of paint is sent to a dust-free oven and baked.
Before using the paint coating thickness gauge to measure, the workers will touch the four edges and corners of the hardware components with their hands to see if they are smooth and flat; observe whether the color of the entire hardware component surface is uniform. If the edges and corners are smooth and the color is the same, then it largely proves that the paint film is uniform and the color is full.