Holographic Polyester Powder Coated Aluminium Ral 7032 7047 For PV Photovoltaic
The Core Function of Black Powder Coating for PV Mounting Structures
Core Performance Requirements
- Superior Corrosion Resistance: This is the most core performance requirement. The coating must pass a Neutral Salt Spray (NSS) test for over 1000 hours, or even meet higher standards, to prevent rusting or corrosion of the mounting structure base material (mostly aluminum alloy or steel).
- Excellent Weather Resistance: It should resist long-term UV radiation to avoid fading, chalking, cracking, or other issues on the coating. Generally, after a 2000-hour artificial accelerated aging test (QUV), the color difference and gloss change of the coating must stay within allowable ranges.
- Good Physical and Mechanical Properties: These include high adhesion (reaching Grade 0 or Grade 1 in the cross-cut test), impact resistance (withstanding a certain level of impact without peeling), and wear resistance. These properties address minor collisions and friction during installation and use.
- High and Low Temperature Resistance: The coating must remain stable within the extreme temperature range of -40℃ to 80℃, without softening, embrittlement, or peeling.
Main Applications and Values
- Protecting the Base Material and Extending Mounting Structure Lifespan: By forming a dense, uniform coating on the surface of the mounting structure, it isolates the base material from corrosive media such as air, moisture, and salt. This extends the service life of the mounting structure from several years to over 20 years, matching the design life of the PV system.
- Optimizing Appearance and Recognition: The black coating has a uniform, attractive appearance, which enhances the overall visual uniformity of the PV power station. Meanwhile, black is a neutral color that blends better with the surrounding environment (such as rooftops and the ground).
- Enhancing Environmental Adaptability of Mounting Structures: For different application scenarios (such as coastal areas, plateaus, and deserts), the coating formula can be adjusted to enhance specific properties (like salt spray resistance and UV resistance), ensuring the stable operation of the mounting structure in various harsh environments.
- Meeting Safety and Environmental Standards: High-quality black powder coatings contain no solvents and have extremely low VOC (Volatile Organic Compounds) emissions, complying with environmental requirements. Additionally, the coating itself is non-flammable and does not release toxic substances, meeting the safety standards of power stations.
Key Differences from Coatings of Other Colors
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Comparison Dimension
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Black Powder Coating
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Light-colored (e.g., white, light gray) Powder Coating
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Core Advantages
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Good dirt resistance (stains are less visible), uniform appearance
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High reflectivity, low heat absorption
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Applicable Scenarios
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Most general scenarios, power stations with high appearance requirements
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High-temperature areas with special heat dissipation requirements (less common)
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Limitations
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Relatively high heat absorption (minimal impact on the mounting structure)
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Prone to showing dirt, more obvious appearance changes after long-term use
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Our Advantage
1, Epoxy powder coating: offer the best corrosion protection.
2, Polyester powder coating: offer the highest exterior stability and performance.
3, Our products applied to indoor and outdoor.
4, Our products with SGS,Tuv, Rohs,TDS, MSDS, Certificate.
F&Q
Q:What color are available to me?
A:We usually carry a very large range of colors. Has access to over 300 paint color and texture. Feel to call us and ask if we stock your required color. If not we can customize.
Q:Are all the colors the same price?
A:NO. Some colors are more expensive due to their availability. Ingredients, such as texture powders, candies, metallic, glow in dark powders.
Q:Where can I find pricing information?
A:Our pricing structure is dependant on volume, technology and color choice. Please contact us for specific product pricing.
Q:Need more info?
A:We would love to help you with your Powder Coating questions and of course we look for ward to doing business with you. Let us know how we can help you.
Q:What kind of payment terms you can accept?
A:We accept PayPal, T/T , LC,and Western Union
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.