Color Coated Aluminum Coil Types, Characteristics and Applications

Table of Contents

Color Coated Aluminum Coil Overview

Color coated aluminum coil, with its elegant colors and anti-rust characteristics, has gradually been extensively used in many kinds of industries. This has to be mentioned owing of its distinctive material and characteristics. Color coated aluminum coil, often referred to as color coated aluminum, is pure aluminum sheet or coil that is further processed to apply a brightly colored coating to its surface. This coating is usually extremely durable and resistant to a variety of environmental factors, including corrosion, friction, and UV rays.

The exceptional performance of color coated aluminum coils can be attributed to the special treatment they undergo. Throughout the production process, the surface of these coils undergoes a series of specialized treatments, which include chemical, mechanical, and electrochemical processes. These treatments aim to create a highly compact surface. This treatment not only enhances the corrosion resistance of color coated aluminum coils but also imparts excellent anti-fouling and self-cleaning properties to them. Consequently, color coated aluminum coils exhibit a high level of resistance against corrosion and are capable of repelling dirt and maintaining a clean appearance.

color coated aluminum schematic diagram of layer structure


Alloy Grade 1050, 1060, 1070, 1100, 1145, 1235, 3003, 3004, 3011, 3105, 5005, 5006, 5052, 5754, 5182
Thickness 0.1-3.0mm
Width 30-2200mm
Temper O, H12, H14, H16, H18, H22, H24, H26, H28, H32, etc.
Coating Paint PVDF, PE
MOQ 1 Tons
Delivery Ready stock: 7-10 days, future goods: 15-30 days
Price term EXW,FOB,CIF,CFR,CNF,etc.
Payment L/C,T/T,Western Union,etc.
Certificates ISO9001&GS&ROHS&FDA&TUV&ISO&GL&BV,etc.

Color Coated Aluminum Coil Types

Based on the Coating Material

PE color coated aluminum coil

PE Color Coated Aluminum Coil

The PE color coated aluminum coil is coated with a UV-resistant PE (polyester) coating. The coating can be classified as either matte or glossy depending on its level of shine. The compact molecular structure of the coating ensures a smooth and glossy paint surface, facilitating excellent print quality on the panel surface. Additionally, it comes with a 7-year warranty for weather resistance.

PVDF color coated aluminum coil

PVDF Color Coated Aluminum Coil

The PVDF color coated aluminum coil is manufactured using PVDF paint sourced from renowned brands like PPG, VALSPAR, and NIPPON. It undergoes a process of duplex or triplex coating and high-temperature baking to create a cured coating with a thickness of 25–35μm. The PVDF coating provides outstanding resistance to corrosion, superior weatherability, strong adhesion, high self-cleaning capability, and requires minimal maintenance. Consequently, the aluminum coil coated with PVDF can maintain its color vibrancy and durability for a period of 10–15 years.

Based on Color

During the manufacturing process of color coated aluminum coils, a single, uniform color coating is applied to the coil’s surface to create a solid color coated aluminum coil. These solid color coatings come in a variety of colors, such as white, black, red, blue, and more, catering to diverse customer requirements and various application scenarios.

black aluminum coil

Black Aluminum Coil

A black aluminum coil is an aluminum coil that has been treated with a specialized coating or paint to attain a black color. It finds widespread application in diverse industries, such as construction, automotive, electronics, and decorative sectors. The black coating imparts a sophisticated and contemporary visual appeal, making it a favored option for projects that call for a striking and stylish look.

white aluminum coil

White Aluminum Coil

A white aluminum coil is an aluminum coil that has undergone a specialized coating or painting process to achieve a white color. It finds widespread use in various industries, including construction, signage, transportation, and home appliances. The white coating not only enhances the coil’s visual appeal by creating a clean and vibrant appearance but also offers important protective qualities such as resistance to corrosion, weathering, and fading.

Color Coated Aluminum Coil Processing

The initial step in the production process involves the continuous uncoiling of raw material rolls using an uncoiler to ensure a consistent and uninterrupted supply of rolls to the production line. Various methods are employed, such as the use of cross-rotating beam winders or two sets of front and rear alternating uncoilers, all aimed at maintaining a steady volume of supply.

Once the lightweight aluminum coil is cleaned, chromed, coated, and subjected to baking processes, it becomes a color coated aluminum coil, featuring a variety of paint coating colors on its surface.

Cleaning and pretreatment involve thorough cleaning of the aluminum coil using water jetting, which is more effective and power-efficient compared to traditional methods. This process enhances the corrosion resistance and promotes coating adhesion. By forming a chemical conversion film on the aluminum surface, this method effectively improves product quality and reduces waste.

The coil coating process consists of two stages: primer and top coating. The aluminum coil passes through a rolling coating machine where one or both sides are covered with primer. After drying, the coil is then processed through two roller coating machines, applying the top coat to one or both sides of the coil.

Following the coating process, the strip undergoes curing in a regulated temperature curing oven. This step ensures the removal of volatiles from the strip and the complete curing of the coating. The curing temperature, typically set between 200 and 300 degrees Celsius, is crucial in ensuring the quality of the final product.

The coils can be further processed into various shapes such as rolled gates, slit patterns, or embossed patterns, offering versatility in their application and use.

color coated aluminum coil production process

Color Coated Aluminum Coil Characteristics

Flatness: No composite high-temperature indentation on the surface. The surface of the board has no residual stress and no deformation after shearing.

Decorative: Coated wood grain, stone pattern, with realistic physical texture and vivid natural beauty. Patterns can be made at will, giving customers a wide range of personalized choices, enriching the humanistic connotation of the product and giving people more enjoyment of beauty.

Weather resistance: The baking paint pattern made by joint coating and high-temperature baking has high gloss retention, good color stability and minimal color difference. Polyester paint warranty 10 years, fluorocarbon paint warranty more than 20 years.

Mechanical: Selection of high-quality aluminum, plastic and adhesive, using advanced composite technology. The product has the bending and folding strength required for decorative panels, and will not cause bending, deformation, expansion and so on under the climate state of four seasons and changes in wind pressure, temperature, humidity and other factors.

Environmental friendliness: Resistant to salt, alkali, acid and rain corrosion, itself will not corrode live to produce poisonous bacteria, does not release any toxic gases, does not cause rust and corrosion of keel and fixed parts, flame retardant. According to national regulations not less than B1 level.

Color Coated Aluminum Coil Applications

Many kinds of colors are available in color-coated aluminum coil, which is fantastic for enhancing the aesthetic appeal of a variety of structures, including big commercial buildings, residential complexes, and expansive exhibition spaces. It is the perfect material for producing a variety of architectural shapes owing to its exceptional machinability and plasticity. Color-coated aluminum coils are a great choice for architectural designs because they allow builders and homeowners to add a personalized touch to the ceilings and facades of their buildings. Whether it’s a multifunctional large-scale structure or a unique and innovative building, color coated aluminum coils can meet the diverse needs of both modern and classical architectural styles, enlivening the buildings with an extensive palette of colors. These products find applications in different fields such as construction (aluminum composite panels, aluminum honeycomb, corrugated roofing panels, fire-resistant veneer panels, aluminum ceilings, shutters, rolling doors, garage doors, canopies, rain gutters), electronics and electrical appliances (computer casings, electrical panels), lighting, furniture, solar energy reflective panels, air conditioning ducts, and more.

color coated aluminum coil for buildings


In summary, color coated aluminum coils have gained significant popularity as a preferred material due to their stable performance, impressive resistance against corrosion, and attractive appearance. They find extensive applications in various industries such as construction, decoration, and electronics. As science and technology continue to advance, it is expected that color coated aluminum coils will demonstrate their unique advantages in even more fields.

color coated aluminum coil types


What is prepainted aluminum coil?

Prepainted aluminum coil refers to an aluminum coil that has undergone a coating process before use, where a layer of paint or coating material is applied to enhance its appearance, protect it from corrosion, and provide additional functional properties. It is a pre-coated aluminum product that offers improved aesthetics, durability, and resistance against environmental factors, making it a popular choice in various industries.

What are the benefits of coating AC coils?

Coating AC coils provides benefits such as enhanced corrosion resistance, protecting the coils from environmental factors and extending their lifespan, while also improving heat transfer efficiency, leading to better cooling or heating performance in air conditioning systems. Additionally, the coating makes AC coils easier to clean and maintain, reducing the accumulation of dirt and debris, and enhancing the overall durability and aesthetic appeal of the coils.

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