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UV aging Test Chamber for sealant aging test

Abstract: 这篇文章探讨了紫外线老化试验箱在密封胶耐老化测试中的应用。密封胶广泛应用于建筑、汽车、电子和航空航天等领域,长期暴露于紫外线、温度和湿度等环境因素下,可能会导致老化和性能下降。通过紫外老化试验箱,能够模拟真实环境中的紫外辐射和气候条件,加速密封胶的老化过程,从而评估其耐久性和性能。文章详细描述了测试流程,包括材料选择、试验条件设定、样品处理、老化监控和数据分析,并列举了紫外老化试验箱在建筑、汽车、电子、能源和工业制造等领域的具体应用,强调了其在密封胶可靠性评估中的重要性。

Sealants are commonly used in industries such as construction, automotive, electronics and aerospace for filling and sealing seams, waterproofing, thermal insulation and shock absorption. However, sealants may age, degrade and perform poorly under long-term exposure to environmental factors such as UV light, temperature and humidity.

The UV aging Test Chamber can simulate the UV radiation and climatic conditions in the real environment, and evaluate the performance by accelerating the aging process of the sealant.

紫外线老化试验箱用于密封胶的耐老化测试配图1

Test procedure

The following is the specific process of the UV aging Test Chamber in the application of sealant:

  1. Select the sealant material that meets the requirements. According to different application requirements, choose the appropriate type of sealant, such as silicone sealant, acrylic sealant, etc.

  2. According to the test requirements, determine the UV radiation source, temperature, humidity and radiation time in the Test Chamber. These conditions should be able to simulate real UV radiation and climatic conditions, such as sunlight exposure, high temperature, humidity, etc.

  3. Apply the sealant sample to a specific sample substrate, or fill the sealant sample in a sample that simulates the seam. Make sure the sample is completely dry and place it on the sample table of the Test Chamber.

  4. Start the UV aging Test Chamber and expose the sample to simulated UV radiation. According to the set test conditions, the radiation is for a certain period of time. At the same time, the damp-heat cycle can be selectively performed to simulate real environmental conditions.

  5. Regularly monitor and record the performance changes of sealant samples. Appropriate instruments and equipment, such as Tensile Testing Machines, viscometers, etc., can be used to measure and record the tensile strength, viscosity, hardness and other indicators of sealant.

  6.        According to the test data and evaluation indicators, analyze the aging degree and performance changes of the sealant samples. Compare the differences between different test samples and evaluate the durability, stability and service life of the sealant.


Testing through the UV aging Test Chamber can provide reliability assessment of sealant materials, guide manufacturers and users to choose the right sealant, and ensure its durability and performance requirements in various application fields. This helps to provide high quality and reliable sealing results, ensuring the reliability and durability of joints and seals.

Industry standard

In the UV aging test of sealants, the following industry standards can be referred to:

  1. ASTM C1442 is a standard issued by the American Society for Testing and Materials (ASTM) for the testing of thin-film protective coatings, including thin-film coatings of sealants. The standard provides guidelines for some coating performance tests that can be applied to the performance evaluation of sealants.

  2. ISO 6927 is a standard published by the international standards organization (ISO) for the determination of changes in the mass and volume of sealants after immersion in liquid chemicals. This standard can be used to assess the durability of sealants in different chemical environments.

Specific application

Specific application cases include but are not limited to the following areas:

  1. Building and construction industry: Sealants are used in building and construction to fill and seal building materials, joints and gaps, such as window frame seals, floor joints, wall joints, etc. UV aging Test Chambers can be used to evaluate the weather resistance and performance changes of sealants to ensure their reliability and durability in building and construction.

  2. Automotive industry: Sealants are widely used in automobile manufacturing and maintenance, such as body seals, windshield seals, window seals, etc. UV aging Test Chambers can be used to evaluate the weather resistance and performance of automotive sealants to ensure their reliability and sealing effect in automotive use.

  3. Electronics industry: Sealants are used to protect and seal electronic components and circuit boards in the manufacture of electronic products, such as electronic package sealing, connector sealing, etc. UV aging Test Chambers can be used to evaluate the weather resistance and performance changes of electronic sealants to ensure their reliability and sealing effect in electronic products.

  4. Energy industry: Sealants are used in the energy field for sealing solar modules, sealing wind power equipment, etc. UV aging Test Chambers can be used to evaluate the weather resistance and performance of sealants to ensure their reliability and sealing effect in energy equipment.

  5. Industrial manufacturing: Sealants are used in industrial manufacturing to seal equipment, pipes and containers, etc. UV aging Test Chambers can be used to evaluate the weather resistance and performance changes of industrial sealants to ensure their reliability and sealing effect in industrial environments.

  6. These use cases illustrate the importance of UV aging Test Chambers in the testing of sealants, helping manufacturers and users evaluate the durability and performance of sealants, and ensure their sealing effectiveness and reliability in various industries.

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