Paint film abrasion resistance and its test method - rubber abrasive wheels method

Abrasion resistance is the resistance of a paint film to friction and mechanical action. This article will introduce the definition, testing principle and commonly used measurement methods of abrasion resistance, focusing on the rubber abrasive wheels method and discussing its significance in practical applications. The abrasion resistance of a paint film depends not only on hardness, adhesion and cohesion, but also closely related to substrate, surface preparation and drying conditions.

Films play a key role in a variety of applications, whether in automotive manufacturing, architectural decoration or furniture manufacturing. However, the abrasion resistance of a paint film is one of the key indicators of its mass and durability. This article will delve into the importance of abrasion resistance and how to test and improve the abrasion resistance of paint films.

What is abrasion resistance?

Abrasion resistance refers to the resistance of a paint film to friction and mechanical action. The abrasion resistance of a paint film is actually a combination of its hardness, adhesion and cohesion. This means that the paint film needs to be able to withstand external forces while maintaining its integrity and mass.

The abrasion resistance of the paint film is not only related to the properties of the paint film itself, but also affected by factors such as the type of substrate, surface preparation, and the temperature and Humidity of the paint film during the drying process. Therefore, in order to evaluate the abrasion resistance of the paint film, we need to conduct a series of tests and analyses.

Test method for abrasion resistance:

To determine the abrasion resistance of paint films, we can use different test methods, including shakeout method, spray method and rubber abrasive wheels method. In this article, we will focus on the rubber abrasive wheels method and how to test according to GB/T 1768-2006 standard.

The rubber abrasive wheels method is a widely used method for evaluating the abrasion resistance of paint films. The testing process includes the following steps:

1. Fix the sample on the working turntable of the paint film wear-resistant instrument.

2. Add the required mass to the pressurized arm and install new rubber abrasive wheels on the paint film.

3. Add the equilibrating weight and lower the suction nozzle.

4. Turn on the main switch, vacuum cleaner switch and turntable switch.

5. The sample was ground at 50 revolutions and weighed.

6. Re-grind to the specified number of revolutions and weigh again.

7. Calculate the amount of loss, and the result is expressed in the loss of paint film weight (grams).

In addition, abrasion resistance can also be expressed in terms of the number of cycles required to grind the coating or substrate. This test method provides detailed information on the abrasion resistance of the paint film, helping to assess its performance and durability.

The rubber abrasive wheels method is of great significance as a commonly used abrasion resistance testing method. Through this method, we can determine the true performance of the paint film to ensure that it can withstand daily abrasion and friction in practical applications. In different industries, the abrasion resistance of the paint film is crucial. In the automotive industry, the exterior coatings of vehicles need to have excellent abrasion resistance to resist particles, sand and Miscellaneous abrasion factors on the road. In the field of architectural decoration, the paint film needs to be resistant to wind, rain and abrasion in daily use. In the furniture manufacturing industry, the paint film on the surface of the furniture also needs to be able to withstand frequently touched items and wipes. The test results of the rubber abrasive wheels method can help manufacturers and engineers determine the service life and maintenance needs of the paint film. If the paint film shows good abrasion resistance in the test, they may remain beautiful and functional for a longer time. Conversely, if the test results are not satisfactory, the manufacturer can improve the coating formulation or take Miscellaneous measures based on the test data to improve the abrasion resistance of the paint film.

Abrasion resistance is one of the key factors in the mass and durability of paint films and is of great significance for a variety of Applications. By using test methods such as the rubber abrasive wheels method, we can accurately assess the abrasion resistance of paint films to ensure that they perform well in practical applications. Manufacturers and engineers should pay close attention to the abrasion resistance of paint films and continuously improve coating formulations based on test results to meet the needs of different industries. Only paint films with excellent abrasion resistance can maintain aesthetics and performance in various environments, extend their service life, and thus provide users with a better experience. Therefore, abrasion resistance is not only an important part of paint film technology, but also one of the key factors for product mass and sustainability.