Decorative Exterior Metal Siding
The decorative exterior metal siding surface layer is made of 55% aluminum zinc alloy coated steel plate, which has strong corrosion and oxidation resistance and a 10-year warranty. High quality coating technology ensures long-lasting and stable color, without fading or powdering for 20 years.
Highlights and advantages
Significant durability
The decorative exterior metal siding surface layer is made of 55% aluminum zinc alloy coated steel plate, which has strong corrosion and oxidation resistance and a 10-year warranty. High quality coating technology ensures long-lasting and stable color, without fading or powdering for 20 years.


High efficiency and energy saving
the core adopts high-density polyurethane foam insulation layer, whose extremely low thermal conductivity can effectively block heat transfer, significantly reduce the energy consumption cost of building cooling and heating, and improve the overall energy efficiency.
Easy installation
Adopting pre engineering design, the component system is streamlined, and the installation process is as efficient and fast as building blocks, greatly shortening the construction period and complying with international mainstream building codes and standards.


Aesthetic design
Provides rich panel patterns such as wood grain, stone grain, pure equality, and color selection, endowing the building facade with infinite creative possibilities and perfectly meeting the diverse needs of modern architectural design.
Sturdy Armor
The system has excellent air tightness, water tightness, and wind resistance, and can handle various harsh weather conditions with ease. The overall structure is sturdy and does not require additional maintenance in the future, truly achieving a one-time solution.


Value Choice
Refined quality control throughout the entire process to ensure the accuracy and consistency of each board. The product integrates long-term insulation, excellent decoration, and sturdy protection, bringing customers unexpected long-term investment value.

Chemical Composition Parameter Table
Decorative exterior metal siding are composed of high-performance aluminum zinc coated steel plates (55% aluminum+43% zinc) and polyurethane insulation core materials. The following chart shows their respective chemical composition parameters.
1. Metal surface layer (chemical composition in accordance with international standard ASTM A792)
|
composition |
Content percentage |
effect |
|
Fe |
margin |
Substrate, providing the strength and toughness of the main structure |
|
Al |
54.0% - 56.0% |
Form a dense alumina protective layer, providing excellent corrosion resistance and high-temperature oxidation resistance. |
|
Zn |
43.0% - 45.0% |
Provide sacrificial anode protection to effectively prevent the spread of rust at cut edges and scratches. |
|
Si |
约 1.0% - 1.6% |
Form a dense alloy layer between the steel base and the coating to ensure the adhesion of the coating |
2. Insulation core material of Decorative exterior metal siding
It is usually rigid polyurethane foam, which is formed by reaction and foaming of the following chemical components.
|
component |
Chemical Class |
effect |
|
polyether polyol |
high molecular polymer |
Reaction body, forming the skeleton structure of foam, determining its strength, elasticity and weather resistance |
|
Polyisocyanates |
Isocyanate compounds |
The reaction subject crosslinks and polymerizes with polyols to form a stable polyurethane polymer network. |
|
foaming agent |
Commonly used cyclopentane, etc |
Gasification generates bubbles, forming closed cell foam structure, providing extremely low thermal conductivity. |
|
catalyst |
Amine organic metal compounds |
Accelerate the polymerization reaction and foaming process of polyurethane. |
|
surfactant |
organosilicone |
Stable foaming process, controlling cell size and uniformity |
|
flame retardant |
Phosphorus containing and halogen containing compounds |
Improve the flame retardant performance of the material to meet the B1 level flame retardant standard. |

Scratch repair guide for sheet metal
Scratch assessment and repair principles
To address the issue of scratches on decorative exterior metal siding, we first need to conduct a scientific evaluation based on the depth and severity of the scratches. We usually divide scratches into three levels for you to take targeted repair measures:
|
Scratch grade |
Scratch depth |
Repair method |
Required materials |
|
Superficial scratches |
<0.1mm |
Cleaning and polishing |
Special polishing agent, ultra-fine fiber cloth |
|
Moderate scratch |
0.1-0.3mm |
smooth and level |
Special polishing agent, ultra-fine fiber cloth |
|
Deep scratch |
>0.3mm |
Fill and repair |
Epoxy putty, matching paint |
You need to determine the level situation based on the above table and take targeted repair measures.
Clean the surface: Use a cleaning agent and a clean cloth to thoroughly clean the scratched area, ensuring that there is no dust or dirt.
Special polishing agent wiping: Dip a microfiber cloth into the special metal polishing agent and gently wipe along the scratch direction. The fine abrasive particles in the polishing agent can fill and smooth out small depressions, restoring surface gloss.
Final maintenance: After polishing, stainless steel polishing agent or a thin layer of vegetable oil (such as olive oil) can be used for maintenance to enhance surface resistance and glossiness.
Cleaning and preliminary polishing: After cleaning, gently polish the scratch direction with 240 grit sandpaper to remove burrs and damaged coatings, making the scratch edge smooth.
Fine polishing: Replace with sandpaper of 600 grit or finer, and continue polishing along the direction of the scratch to gradually flatten the surface. When polishing, it is important to keep the sandpaper and surface moist to avoid creating new scratches and removing polishing debris.
Cleaning and inspection: Clean the surface with a damp cloth and check for flatness. If the scratch has disappeared, subsequent polishing or coating maintenance can be carried out.
Cleaning and substrate treatment: Use a diluent to carefully clean the scratched area to ensure that there are no oil stains or impurities.
Fill and level: Use epoxy putty or metal special filler to carefully fill the scratches and depressions. Scrape off excess filling material to make it slightly higher than the surrounding surface. Wait for it to fully solidify.
Polish flat: Use fine sandpaper with a grit of 600 or more to polish the cured filling material until it is completely flush with the surrounding surface.
Spray primer and topcoat: Contact us to obtain the original factory used, color matched special coating for this product.
Then spray the topcoat, usually twice, with an interval of about 30 minutes between each layer to ensure dryness. When spraying, the surrounding environment should be kept clean and adjacent areas should be covered and protected to avoid pollution.
Light protection: Finally, decorative exterior metal siding can be sprayed with transparent varnish to enhance the wear resistance and glossiness of the repaired area, and make the appearance coordinated with the surrounding area.



Why choose our customized service?

Strength certification
1. Certified Quality: We hold an ISO triple management system fordecorative exterior metal siding, ensuring that every customization process from raw materials to finished products meets international standards and has stable and reliable quality.
2. Excellent performance: The core layer is made of 0.020 W/(m · K) polyurethane insulation material, which is superior to international standards and has significant energy-saving effects. Customization is not just about aesthetics, but more about the overall performance and sustainability of the building.
3. Technical support: Combining a professional R&D team with advanced production lines, we ensure that your personalized design can be accurately transformed from drawings to reality, balancing innovation and engineering feasibility.
Infinite possibilities
1. Color formulation: We provide thousands of color card matching or spot color customization services, whether you are pursuing bold and vivid visual impact or simple and high-end texture expression, all can be accurately achieved.
2. Pattern and texture design:
Embossed style: classic wood grain, natural stone, modern geometry, abstract patterns... Your inspiration is our blueprint.
Surface texture: It can provide different coating effects such as matte, glossy, and metallic texture to meet the facade requirements under different light and shadow conditions.
3. Flexible size and shape: Breaking through standard size limitations, customized decorative exterior metal siding with special length, width, thickness, and irregular panels can be customized according to your design scheme, perfectly adapting to various building shapes and structural requirements.
4. Functional composite: According to the climate conditions and energy-saving requirements of the project location, the thickness and density of the insulation core material can be flexibly adjusted, and even different materials can be composite to achieve on-demand strengthening of insulation, sound insulation, fire prevention and other functions.


WHY CHOOSE US
Reliable Quality
Decorative exterior metal siding have fully passed the international certification system, ensuring standardization and normalization of the entire process from production to service, providing you with solid and reliable quality assurance.
Reasonable pricing
The product pricing is very reasonable, which ensures that our metal wall panels have a competitive advantage in the market. If you need to place a large order, we can offer you our highest discount.
Global delivery
We use multiple delivery companies for delivery and have multiple logistics solutions. You can choose the appropriate solution according to your needs, and we will quickly deliver according to standards.
Easy maintenance
The surface layer is made of high durability aluminum zinc steel plate, which is corrosion-resistant, fade resistant, and has a long service life, greatly reducing maintenance costs in the later stage. It is your preferred material for one-time investment and long-term benefits.
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