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Q&A page regarding the aluminum fin deterioration prevention paint "Polyual."

Introducing answers to questions regarding the application of aluminum fin deterioration prevention paint!

"Polyual" is a corrosion prevention paint for aluminum fins patented by Blygold. By applying this product, a coating film is formed on the surface of the aluminum fins, helping to prevent deterioration. We have answered questions regarding this product, and here are some examples. 【Q&A Examples (Excerpt)】 ■ Can it be applied to home-use, small air conditioners? ■ Where can I buy Polyual? ■ Can it be applied to new units as well? ■ Will it increase electricity consumption? ■ Can the air conditioner be used during application? And more. *For more details, please refer to the external link or feel free to contact us.

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[Polyurethane Construction Examples] Power Plant Radiators and Others

Introducing examples of installations for power plant radiators and outdoor units for refrigerated warehouses!

Reliable technology to protect air conditioner aluminum fins from salt damage. Here are some examples of the application of "Polyual." For rust prevention measures on Okinawa Electric Power's large air-cooled radiator, it was applied to the power plant radiator. 【Overview】 ■ Application Target: Power Plant Radiator ・ Application Example: Rust prevention measures for Okinawa Electric Power's large air-cooled radiator ・ Remarks: No damage observed in the second year due to coating *For more details, please refer to the PDF document or feel free to contact us.

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Comparison with stainless steel fins and copper fins

Comparing "stainless steel fins," "copper fins," and "polyural"! Detailed explanation provided.

Stainless steel fins deteriorate under severe salt damage conditions, and their low thermal conductivity is well known. Copper fins excel in thermal conductivity due to their close contact with copper tubes, but they are expensive, and the salt resistance of copper is not much different from that of aluminum, resulting in a deterioration rate that is said to be about half that of standard aluminum fins (deterioration between dissimilar metals can be avoided). Under conditions where standard aluminum fins deteriorate in three years, copper fins will deteriorate in about five to six years. Therefore, we propose our aluminum fin deterioration prevention coating, "Polyual." 【Features of Polyual】 ■ Provides semi-permanent protection ■ Maintains and restores the initial performance of fins ■ Effectively protects the air conditioning unit from salt damage and polluted gases ■ Protects thoroughly from the inside of the fins to the ends ■ 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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Can it be overcoated with cation?

A detailed explanation of whether topcoating can be done on cationic electrodeposition coating!

We often receive inquiries about whether it is possible to apply a topcoat over cationic electrodeposition paint. The answer is yes, and there are successful cases. However, when a topcoat is applied over cationic paint, the adhesion is dominated by the cationic layer, which is prone to cracking. If the cationic coating cracks or peels, the topcoat may also tear, and in this case, it will not be covered by warranty. Using a thin pre-coat film with salt damage resistance reduces the risk, but the adhesion will still be weaker compared to painting directly on aluminum or copper. Considering the costs, we recommend painting directly on aluminum or copper. *For more details, please refer to the PDF materials or feel free to contact us.*

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Comparison with cationic electrodeposition

Comparing "cationic electrodeposition" and "polyurethane"! A detailed explanation will follow.

Cationic electrodeposition is an excellent rust prevention technology; however, in the case of heat exchangers, a film thickness of 20 microns, which is expected to provide sufficient rust prevention, can affect thermal efficiency, leading to an increase in electrical material quantity and potentially requiring larger equipment. Therefore, we propose our aluminum fin deterioration prevention coating, "Polyual." 【Comparison】 <Cationic Electrodeposition / Polyual> ■ Application: At manufacturing / At manufacturing, installation site - Since thinner is used for Polyual application, if installed indoors, painting must be done outdoors before installation. ■ Film thickness: 8–30 microns / 20–25 microns ■ Thermal conductivity: Low / High - Polyual has thermal conductivity equivalent to aluminum. ■ Repairability: Not possible / Possible *For more details, please refer to the PDF document or feel free to contact us.

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The necessity of the aluminum fin deterioration prevention paint "Polyual."

A detailed explanation of environmental factors that induce malfunctions and the importance of air conditioning units!

Environmental factors that significantly impact the performance and lifespan of heat exchangers in outdoor units of air conditioning systems include not only salt damage and volcanic gases from hot springs but also acid rain, exhaust gases, and various airborne impurities from agricultural and industrial production. On the other hand, it is said that many malfunctions in air conditioning equipment stem from heat exchangers and aluminum coils, and failures in components like compressors are often caused by performance degradation of the heat exchangers or overload due to clogging. Maintaining the heat exchangers of outdoor units, which process an amount of air equivalent to a full Tokyo Dome in just one week, is directly linked to the longevity of the air conditioning units, especially when compared to the heat exchange devices of indoor units that are protected by filters. Therefore, we propose our aluminum fin deterioration prevention coating, "Polyual." **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 - Thoroughly envelops the fins from the inside to the edges for protection - 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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Comparison with precoat

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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[Market Report] Paint and Coating Market

Global paint and coating market forecasts sustainable growth.

The global paint and coating market is expected to achieve stable growth from 2023 to 2032. Market revenue is projected to increase from 192.7 billion USD to 291.3 billion USD, with a compound annual growth rate (CAGR) of 4.7% during the forecast period from 2024 to 2032. Paints and coatings refer to types of materials applied to the exterior of specific objects to protect surfaces from exposure to sunlight and oxidation. This covering not only extends the lifespan of the object but is also used for functional and decorative purposes. You can check the application method by clicking the [PDF Download] button or apply directly through the related links.

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