Test Method for Heat Resistance of Toyota TSH1507G Paint Film

The "Toyota TSH1507G Test method for heat resistance of paint film" standard developed by Toyota vehicle company describes a test method to determine the resistance of the paint film applied to vehicles to high temperatures.

The heat resistance of the paint film used on vehicles refers to the ability of the paint film to resist discoloration, softening and blistering when heated. Generally, according to standards, the heat resistance of the paint film is divided into dry heat resistance and wet heat resistance:

• Determination of the moisture and heat resistance of the paint film: This test is carried out at an ambient temperature of 20 degrees plus/minus 2 degrees and a relative humidity of 60-70 percent. The test temperature is selected within the range of 55 degrees, 70 degrees and 85 degrees according to the product standard or protocol. When starting the test, three detection areas with a diameter of 50 mm are selected on the sample and the color, gloss and surface condition of the paint film of the area are recorded. Then, a copper cup of mineral oil heated to the required temperature is brought to a certain temperature of the cup, then the cup is tried in the detection area, a sample containing thick silk fabric soaked in distilled water is tried. After waiting 15 minutes, the test container and silk fabric are removed and the liquid is wiped off the surface. Then wait for 16-24 hours. Then, detection area marks, color change, bubbling and similar changes are observed according to the standard for evaluation. This testing method uses a brass copper pot, electric furnace, scales, crucible tongs, thermometer, insulation pads, piece of silk cloth, stainless steel pointed tweezers, distilled water and heating medium.
• Determination of the resistance of the paint film to dry heat: The test temperature is selected between 70 degrees, 80 degrees, 90 degrees, 100 degrees and 120 degrees. The test procedure is almost the same as the heat and moisture resistance method, except that wet nylon spinning is not placed between the copper test vessel and the sample. Finally, by observing the natural light in the cabin, the variation of the sample relative to the standard is observed. The material used in this testing method is the same as the heat and moisture resistance method. Paint film of dry heat resistance test can help evaluate the performance of the coating in high temperature environment, thus determining its applicability and durability. In addition, according to different product standards or requirements, different test temperatures can be selected and the performance of the paint film can be evaluated according to the rating standards.

Heat resistance of paint film is important in vehicles because heat-resistant paint is effective in protecting the surface from high temperatures, corrosion, and weather conditions. This paint is highly resistant to extreme heat and provides protection in various industries and applications, including the automotive industry, making it very valuable. Choosing the right heat-resistant paint ensures that the coated surfaces maintain their quality and performance for many years.

Heat resistant paints are specially formulated to withstand temperatures as high as 750 degrees. What makes them different from other types of paint ultimately lies in their composition. Heat-resistant paints consist of inorganic pigment powder combined with a binder solution made of polysilicon alkoxide.

Heat-resistant paints are used on surfaces to reduce the risk of overheating. Paints also help prevent corrosion by providing a layer of protection for the metal beneath the insulation. In addition, these paints offer a beautiful appearance and are aesthetically pleasing. Additionally, this type of paint is used in engine and exhaust systems that contain high temperatures.

Among the numerous testing, measurement, analysis and evaluation studies it provides for businesses in various sectors, our organization also provides testing services defined in the "Toyota TSH1507G Test method for heat resistance of paint film" standard, with a trained and expert staff and advanced technological equipment.