Comparing "Precoat" and "Polyural"! Detailed explanation to follow.
The outdoor units designed for salt damage resistance and heavy salt damage resistance use aluminum fins that are pre-coated with a polymer, which protects the aluminum from salt damage and other hazards. However, while the thickness of the Polyual membrane is 20 to 25 micrometers, the pre-coat is only about 2 to 3 micrometers thick. After being exposed to salt damage for 3 to 5 years, rust may occur, or the pre-coat membrane may degrade due to ultraviolet rays. Additionally, since the pre-coat involves processing aluminum sheets coated with polymer, the cut surfaces, internal cutouts, and contact points with copper pipes are exposed to the outside air, making them entry points for salt damage and corrosion. The aluminum fin deterioration prevention coating "Polyual" addresses these issues. [Overview] The Polyual coating membrane is applied after the heat exchanger assembly, ensuring that both the contact points with the copper pipes at the fin tips and the internal cutout areas are well protected. In the salt damage specification pre-coat, these areas are exposed to outside air. *For more details, please refer to the PDF materials or feel free to contact us.
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basic information
【Features of Polyual】 ■ Provides semi-permanent protection ■ Maintains and restores the initial performance of fins ■ Effectively protects the functionality of air conditioning units from salt damage and polluted gases ■ Protects thoroughly from the inside of the fins to the edges ■ Shuts out the intrusion of salt damage and pollution *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
Company information
BLYGOLD JAPAN Co., Ltd. is a company that specializes in preventing salt damage and other issues in air conditioning and refrigeration equipment. BLYGOLD was established in the Netherlands in 1976 as a manufacturer dedicated to preventing the deterioration of heat exchangers, developing its own rust prevention agents and application methods, and began operations in Japan in 2009. BLYGOLD JAPAN's "Polyual" is a technology that protects the aluminum fins of air conditioning and refrigeration units from corrosion caused by salt damage and other factors. We take pride in the fact that, through maintenance contracts, we can maintain the coating semi-permanently, significantly contributing to the performance maintenance and longevity of air conditioning systems in Japan.
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