Baiyun Chemical did 50-Year Limit Test for Glass Sealant

Silicone sealant resistance to weathering and aging has attracted much attention

Building curtain wall is the product of the development of modern science and technology, which is a significant feature of the high-rise buildings in modern era. All kinds of curtain walls can make the appearance of the building to produce extensive changes and realize strange building effects, so they are loved by the building designers. As the most important bond carrier in the curtain wall structure, the resistance to weathering and aging of silicon sealant in the process has attracted much attention in the industry.

Baiyun Chemical is carrying out up to 50 years of atmospheric environment natural aging test for structural sealant

Baiyun Chemical as modern enterprise in domestic sealant industry has a history of nearly three decades, which has paid attention to the safety of the structure sealant application problems at the height of the industry and a strong sense of responsibility. In 1997, Baiyun Chemical self-built a 50-year exposure glass curtain wall in the company square, which regularly derives aging resistance data of structural glass sealant. In order to make the anti-aging experiment more scientific and impartiality, the company signed a 50-year period detection protocol with Guangzhou Chemical Industry Synthetic Materials Aging Quality Supervision and Inspection Center, carrying out up to 50 years of atmospheric environment natural aging test for structural sealant in the natural exposure test site in Guangzhou and Xinjiang region.

Significance of Baiyun Chemical 50-year limit test

The silicone sealant on the market generally provide not more than 25 years of quality assurance. Baiyun Chemical carries out the 50-year limit test in dry, hot and humid environment natural exposure test in Guangzhou and Xinjiang. The atmospheric environment natural aging test data will continue to provide strong data support the research and development of innovative and guidance products under different climatic and environmental conditions, allowing Baiyun Chemical to provide customers with safer and more permanent high-quality silicone sealant, which provides more reliable, scientific and credible standards for the development of industry standards, national and international standards.

The 50-year limit test provide more reliable basis for the design life of the structural silicone rubber in a variety of areas

It is reported that the world's developed countries have established natural exposure test site in the place where there is the typical climate environment. This time Baiyun Chemical selected natural exposure testing ground in Guangzhou and Xinjiang for the 50-year limit test, respectively, they have a typical subtropical hot and humid climate characteristics and northern desertdry hot cold climate characteric. The two have a great contrast, which the climate zone with extreme characteristics. Using natural climate characteristics for structural silicone rubber aging study, investigating the aging resistance of structural silicone gel in cold, hot and humid and other extreme weather conditions can provide more reliable basis for the design life of the structural silicone rubber in a variety of areas.

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Application of Industrial Sealant

Features of Waterproof Sealant

With the rapid development of economy and technology, technical requirements of each industries are increasing day by day. Sealant is a kind of special glue indispensable in many industries. Such as electrical/electronic industry, packaging industry, aerospace industry and architectural industry etc. Among them, the common widely used waterproof sealant is mainly applied to the adhesive bonding of sanitary products, outdoor daily things, ship parts and other water supplies. The waterproof sealant has many good characteristics: good waterproof performance is the most important feature of waterproof sealant, in addition, it has excellent viscosity, is a non-toxic, tasteless, non-combustible, non-polluting, environmentally friendly polymers waterproof sealant. It also has excellent permeability, water penetration resistance, corrosion resistance, abrasion resistance and weather resistance, its construction is quick and easy, save time, save labor and save strength, low cost and superior waterproof effect.
　
Basics of Glass Sealant

Glass Sealant is a kind of senior silicone sealant of single component, low modulus and acid-curing multipurpose. Generally, it is suitable for the sealing for glass and other materials. You must test its adhesion, compatibility and pollution of the substrate before using it. The use of the product effect depending on the specific substrate used. And it has strict restrictions on Use: the surface of construction materials must be clean and dry; prohibit to use in structural applications; ban to contact with the insulating glass sealant and does not apply to the sealing of long-term flooding, airtight or the surface permeability material; not fully applicable to ceramics and other porous materials. The surface temperature should be between 15 ℃ ~ 27 ℃ when construction. Emergency treatment: when it comes to eye or skin, immediately rinse it with water. If have adverse reaction, should go seek medical care immediately. The silicone adhesive in the curing stage will release acetic acid (vinegar-like taste), and the fully cured silicone rubber is not toxic.

　 Classification of Glass Sealants

There are various glass sealant in the market, it can be divided into different categories accordingly. Divided by the components: single-component and double-components. The single components silicone glass sealant, its curing is happened by exposure to moisture in the air and produce changes in physical properties; double-component refers to the silicone rubber is divided into two groups (A, B), any stand-alone group can not form a curing and the two groups will produce curing once they mix together. On the market now what we commonly see is the one-component silicone glass sealant: one-component silicone glass sealant properties are divided into acidic gum and two neutral plastic. Acidic glass sealant is mainly used for general bonding between the glass and other building materials. Neutral sealant to overcomes the acidic adhesive corrosion of metal materials and features to react with alkaline materials, and therefore its application is more broad and the market price is slightly higher than the acid sealant.

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