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Sunlight color fastness tester aging test exposure angle analysis
The sunlight color fastness tester is a test instrument used to quickly determine the sunlight and weather fastness of dyes and the sunlight and weather resistance of various substances. Shanghai Qianshi Precision Electromechanical Technology Co., Ltd. can provide solutions for users.
In addition, the R&D engineer of Standard Group said that for products that need to test the sunlight aging performance, it is very important to choose the right exposure angle, only in this way can the scientificity and correctness of the test results be guaranteed.
45° south:
This angle is regarded as a typical outdoor exposure angle and is also the angle chosen by many factories. It is widely used when the material does not choose a specified exposure angle.
5° south:
This exposure angle is the exposure angle used by automotive products or other materials that specify this angle, or it is regarded as a near-horizontal angle. This small inclination angle allows the moisture from rainfall to stay on the surface of the sample. Since it will receive more years of solar radiation, this inclination angle will be more severe than the 45° test. Especially in the summer months, these effects will be enhanced due to the increase in temperature. The 5° inclination angle will collect more condensation than the 45° inclination angle, and the moisture will stay longer.
0° (Horizontal):
Horizontal exposure is rarely used for flat samples or panels because the slight 5° tilt allows water to run off. However, this angle is useful for many three-dimensional samples and parts. This exposure angle is also used for some materials that need to accumulate water, such as roofing materials.
Latitude:
25° North is the location of the Florida test site. 34° North is the location of the Arizona test site. This angle is called latitude and is used to greatly increase the intensity of solar radiation. Latitude is also widely used in solar devices such as solar heaters.
90° South:
This vertical fixed angle is most commonly used for architectural coatings. The vertical exposure angle greatly reduces solar radiation, lowers exposure temperature, and reduces wet time.
2024-12-05 15:06
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