Minghua Steel Structure Co., Ltd

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Color Coated Metal Sheet

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Minghua Steel Structure: Steel Building One-stop Solution

Minghua Steel Structure is a subsidiary of Cangzhou Junxing Minghua Steel Structure Co, Ltd, a professional company specializing in steel structure design, development, fabrication, processing, and installation of all kinds of steel structure projects. The company is located in Hebei Province, China, and covers an area of 28,000 square meters. Our new second factory, covering an area of 30,000 square meters, is under construction.

 

 

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Our Advantages

Rich Production Experience

Our company is a professional steel structure manufacturer 17 years of production experience. Our annual output exceeds 50,000 tons, and our products are exported to more than 30 countries and regions.

 

Strong R&D Capabilities

Our company has professional design personnel, including several experienced structural engineers. We will design customized solutions for users based on customer requirements, usage, and local climate.

Technology First

Our company has advanced steel structure production equipment and technology, including a complete standardized product line, automatic submerged arc welding machines, bridge erecting machines, large intelligent bending machines, sandwich panel machines, and other large precision equipment to ensure the advancement of products.

Reliable Product Quality

After years of development and construction, our company has obtained certifications from the Ministry of Housing and Urban-Rural Development of the People's Republic of China, ACC, IAF, UKAS, BV, and other governments and organizations. ISO9001, ISO45001, ISO14001, and other certifications represent our strength.

 

 

Introduction to Color Coated Metal Sheet

A Color Coated Metal Sheet refers to a metal sheet or coil that has been coated with a layer of color or a specific finish to enhance its appearance, provide protection against corrosion, and meet aesthetic or design requirements. The color coating is typically applied through a process known as coil coating or continuous coating.

 

Benefits of Color Coated Metal Sheets for Roofs
1

Weather Resistant:
These sheets are designed using materials that are good at withstanding adverse weather conditions and can retain their colour and shine for a long time. Harsh summers or winters or heavy rainfall conditions are also unable to affect the life of these roofing sheets and they can remain intact for years to come.

2

Flexibility:
These sheets are easy to handle because of their flexibility and can have a wide range of applications. They are easy to work with which makes the installation process much easier. These sheets can be customized according to the construction requirement and can be designed into varying shapes.

3

Lightweight:
Since these sheets are usually made with lightweight materials such as steel, aluminium they have very low weight while being strong and sturdy at the same time.

4

Corrosion Resistant:
Colour coated aluminium roofing sheets are highly resistant to corrosion which makes them the best material to be used in all types of environmental conditions. Since there is no deterioration through rust, this improves their overall life and reduces maintenance.

5

Thermal Insulation:
Because of the paint on top these sheets do not conduct heat easily which makes them the perfect choice during summers as they do not let the heat from outside enter the building and helps maintain a cool environment inside. By adding low cost insulation like aluminium bubble film, Rock wool insulation, XLPE etc. it helps reduce the energy usage in terms of air conditioning and saves cost.

6

Durable:
As explained in previous points, these sheets are highly resistant to corrosion and they can also withstand all kinds of temperature and environmental conditions which increases their durability and makes them last for years.

7

Environment Friendly:
These roofing sheets can be completely recycled in the future, unlike plastic or fibre materials. They can always be melted and processed to make other roofing products which is why they are absolutely environment friendly.

8

Attractive:
Colour coated roofing sheets are aesthetically pleasing to look. They are available in different colours of choice which improve the overall visual appeal of the building and makes it more attractive.

 

 

Application of Color Coated Metal Sheets

Roofing System
Color-coated steel is the primary material used for roofing houses, warehouses, workshops, and civil structures. Its design flexibility and wide range of color options make it a top choice for roofing systems.
Partition Walls and Barriers
It is also used as a material for partition walls and barriers in industrial and civil constructions. Its thermal and sound insulation properties create better working conditions in warehouses, storage areas, or loading docks.
Advertising Billboards
Color-coated steel is commonly used as the main material for large outdoor advertising billboards. Its resistance to oxidation and durability help maintain brightness and stable colors over time, creating professional and eye-catching
Other Industrial and Construction Projects
Color-coated steel is applied in various industrial constructions, such as factories, plants, ports, airports, export processing zones, and building projects like pre-engineered steel buildings, workshops, gas stations, toll booths, and water pipelines.

 

Factors to Consider Before Choosing Color Coated Metal Sheets

1. Purpose
Consider the intended use of the color-coated roofing sheets, whether for roofing, wall cladding, or applications such as refrigerators or car bodies. Different purposes necessitate varying coatings, colors, thicknesses, and finishes. For instance, roofing benefits from light-colored aluminum sheets that assist in temperature regulation during hot weather, while dark-colored sheets may absorb more heat, contributing to a warmer environment.
2. Types of Coatings
Different types of coatings, such as polyester, PVDF, and SMP, are employed in colour coated sheets. Each coating exhibits distinct properties and performance characteristics, making it essential to select the most suitable one for your specific application. For example, PPGI finds use in construction for manufacturing roofing sheets, roofing tiles, walls, doors, windows, partitions, panels, louvers, slotted angles, and valley gutters.
3. Thickness
Consider the thickness of the sheet, recognizing that thicker sheets generally offer increased durability and better insulation. However, thicker sheets may also entail higher costs. Applications like the production of refrigerators and washing machines often utilize thick color-coated sheets, providing a scratch-resistant finish capable of withstanding daily wear and tear.
4. Colour and Finish
The color and finish of the sheet significantly impact the aesthetic appeal of the building or product. Choose colors and finishes that complement the design and style of your structure or item. Color coated profile sheets contribute to the aesthetic appeal of residential buildings, offering not only functionality during renovations but also pleasing aesthetics.
5. Durability and Lastingness
Prioritize sheets known for their durability and longevity to ensure the sustained vibrancy and attractiveness of the color and finish over time. This minimizes the need for frequent maintenance or replacement. Colour coated roof sheets, renowned for high corrosion resistance, find ideal use in various settings, including storage tanks, pipes, and equipment. Their notable attributes include high formability, corrosion resistance, and an appealing finish capable of withstanding challenging conditions.

 

Storage Tips for Color Coated Metal Sheet

Store them indoors and away from access to open areas. If left in the open, protect them with waterproof covers.

 

If material is not required for immediate use, stack them neatly and clear off the ground. Maintain a clear gap of 30 cm between the sheet package and the ground.

 

Store off the ground and with a minimum 50* slope (1:10) so that if rain penetrates the covering, water will drain away and not form a water pond.

 

Inspect the storage site regularly to ensure that moisture has not penetrated the stock.

 

If the stacked or bundled product becomes wet, separate it without delay, wipe it with a clean cloth, and stack it to dry thoroughly.

 

The sheet should be kept gently to ensure that it is not damaged.

 

Use a spreader bar for long sheets. For small to medium size projects, without mechanical handling facilities, you can unload sheets by hand and pass them up to the roof one at a time.

 

Use personal protective equipment's such as clean hand gloves & closed shoes while lifting.

 

 

Ultimate FAQ Guide to Color Coated Metal Sheet

Q: What is color coated sheet?

A: Colour coated sheets are coated with different colours via a chemical process. This ensures they retain they're colour and shine for a long time. Highly durable. A corrugated aluminium roofing sheet is highly durable.

Q: What is pre coated metal sheets?

A: Pre-painted galvanized steel sheet is a type of metal sheet that has been coated with a layer of paint on top of a layer of zinc coating. The zinc coating, also known as galvanizing, is applied to the steel sheet to protect it from rust and corrosion.

Q: What is color coated steel used for?

A: Color-coated steel is applied in various industrial constructions, such as factories, plants, ports, airports, export processing zones, and building projects like pre-engineered steel buildings, workshops, gas stations, toll booths, and water pipelines.

Q: What are the two common types of coated steel sheets?

A: Pre-Painted Galvanized Iron Steel, also called PPGI, and Pre-Painted Galvalume Steel, PPGL, are two different types of color coated steel. Both PPGI and PPGL are used in a wide range of industries such as construction, transportation, and the appliance industry.

Q: How long does coated steel last?

A: Sherardized coatings can last up to 25 years in rural environments and up to 15 years in more corrosive environments. To maximize the lifespan of galvanized coatings, it is important to ensure that the coating is applied correctly and that the metal surface is properly prepared before coating.

Q: What is an example of a coated metal?

A: For the protection of steel, the first group includes coatings such as zinc, aluminum, and, to some extent, cadmium. These coatings act as sacrificial anodes at sites of discontinuity and thus afford cathodic protection to the metal.

Q: What is color coated steel

A: Color coated steel is a type of steel coated with paint or polymer to improve appearance and corrosion resistance. The market is driven by rising demands from the construction, infrastructure, and automotive sectors.

Q: How can you tell if steel is coated？

A: Salt Water Testing
Prepare a solution of 3 parts salt to 1 part water. Dip a cloth in the solution and use this to wipe the steel surface. Check the steel after 24 hours. If it is a non-galvanised steel, it will rust and if it is galvanised, it won't rust.

Q: How thin are metal sheets?

A: The thickness of sheet metal starts from 0.5 mm and goes up to 6 mm. Anything above that is a metal plate. The thin sheet metal is easy to form, while still providing great strength. At a relatively cheap price, it makes a great fit for most engineering purposes.

Q: Will a colored metal sheet roof fade?

A: The color of a metal sheet roof fades overtime because the chemicals in the paint's pigments start to break down from excessive exposure to the sun. While UV rays are a major contributing factor that causes fading, other factors include moisture, salty air, chemicals in the atmosphere and pollution.

Q: Is coated steel rust proof?

A: Powder-coated steel is highly resistant to rust in most cases, so it won't develop unsightly rust patches or leave red streaks on a patio or building facade.

Q: What does color coated mean?

A: Color coating means a pigmented coating, excluding adhesion promoters, primers, and multicolor coatings, that requires a subsequent clear coating and which is applied over a primer, adhesion promoter, or color coating. Color coating includes metallic/iridescent coatings.

Q: What is the difference between coated steel and stainless steel?

A: Powder coating adds a durable, protective epoxy or polymer layer over the steel, while stainless steel includes metal additives into the composition of the steel to improve durability and corrosion resistance. Powder coated steel is typically made up of iron, carbon and other materials which can rust.

Q: What are the benefits of using color coated metal sheet as a roof?

A: Lightweight
Most of the roof coating suppliers have a colour coated sheet that is produced of Aluminium, and it is one of the lightest possible industrial metals with a thickness only a third of steel or copper. Because most colour-coated sheets are formed of Aluminium, they are both lightweight but have a robust and sturdy structure versus other roofing sheet elements.
Ignition Resistant
As most colour coated sheets are formed of Aluminium, they are non-combustible and have a Class-A fire rating. It makes them safe to practice for homes, gardens, factories, warehouses, etc.
Weatherproof
When revealed to air, aluminum sheets acquire a thin layer of aluminum oxide. This gives them resistance to corrosion also rusting. So you can be very sure your colour coated roofs won’t disappear when exposed to rain, heavy winds, either bright sunlight. Colour coated sheets are painted with different colours through a chemical method. 
Highly Durable
A corrugated aluminum roofing sheet is exceptionally durable. They have a high tensile strength at low temperatures, are thermal-friendly also retain their toughness through all varieties of weather. 
Effortless to Install
As colour coated sheets are lightweight, they are straightforward to install. Unlike other sheets, they don’t change and don’t use pressure on roofs.
Eco-Friendly
Only three to five percent of the vital energy used to design the colour coated sheets is required for recycling. Aluminum also has a shallow melting point, so recycling them becomes undeniable.
Energy Reflection Also Supported
Colour coated sheets today have a galvalume coating, which is an aluminum-zinc alloy. These sheets connect the durability of steel with the anti-corrosive property of Aluminium and the sustainability of zinc. As a consequence, these colour coated sheets are an effective energy-saving solution as they consider heat and thus cut back on your cooling expenses. This makes them fit for hotels, report hangers, resorts, offices, air restaurants, decorative walling purposes, etc.

Q: What is color coated metal sheet?

A: Colour coated sheet is a roofing sheet that has a high-quality color coating throughout the roof or cladding. This sheet has an inside lining of enamel that acts as a protective layer. It is widely used for offices, car parking, warehouses, garages, and industries. This roofing sheet not only adds aesthetic value to the structure but also provides great features.

Q: What is the weight of color coated metal sheet

A: Most color-coated sheets are made of aluminum, which is one of the lightest available commercial metals with a density of only a third of that of steel or copper. Since most color-coated sheets are made of aluminum, they are lightweight but have a strong and sturdy structure compared to other roofing sheet materials.

Q: Does color coated metal sheet corrode?

A: Aluminum sheets create a thin layer of aluminum oxide when exposed to air. As a result, they are rusty and highly corrosive. So you can be confident that even when exposed to rain, strong winds, or direct sunlight, your color-coated roofs won’t fade. The various colors of color-coated sheets are applied via a chemical technique. This makes sure they last a long time while protecting their color and shine.

Q: How about the flexibility and insulation of color coated metal sheet?

A: Due to their flexibility, these sheets are very easy to handle and may be curved in any direction by using different rolling techniques. The sheet can be bent in all directions using these rolling techniques. Prior to bending the core metal, in the case of steel roofing sheets, the steel must be heat treated. In terms of insulation, polymers effectively insulate the roof’s exterior surface. As a result, the colored roofing sheets won’t conduct heat very well and won’t allow it to enter the building. As a result, the summer climate is kept cooler thanks to the colorful roofing sheets.

Q: Is color coated metal sheet beautiful?

A: These sheets are offered in a variety of colors, allowing us to select one that complements the building’s outside paint. These colored sheets’ attractiveness and flexibility are the main reasons they are so well-liked. This qualifies them for use in housing facilities such as hotels and resorts, airport aircraft, eating establishments, workplaces, etc.

Q: What are the Benefits of Color Coated Metal Sheet?

A: Oxidation and Corrosion Resistance
With its aluminum-zinc-magnesium alloy and color coating, color-coated steel has the ability to resist oxidation and corrosion, protecting it from the impact of water, air, and corrosive elements.
High Durability and Long Lifespan
Color-coated steel has high durability and a long lifespan, prolonging the usage time of constructions and reducing maintenance and replacement frequency.
Thermal and Sound Insulation
Color-coated steel has thermal insulation properties, helping to keep the interior of constructions cooler on hot sunny days and warmer in winter. At the same time, it also provides sound insulation, reducing noise from the outside and creating a quiet and comfortable working environment.
Easy Installation and Maintenance
Color-coated steel is lightweight and can be easily cut and bent according to the construction requirements, saving time and installation costs. Additionally, maintaining color-coated steel is simple and cost-effective.
High Aesthetic Value
Color-coated steel comes in a variety of colors and smooth surfaces, enhancing the aesthetic beauty of construction projects.

Q: What are corrugated roofing sheets?

A: Corrugated roofing sheets feature repetitive folds on their surface and they are mostly used in Agricultural Buildings. Their unique shape makes them more reliable and strong. It is due to their corrugated design with ridges and grooves. The special corrugated shape of these sheets is an advantage that lightweight metals like aluminum can also be equipped with them to safeguard the structure from different forms of weather. Due to the increasing pollution level, there has to be maintenance every 5 to 10 years. Their durability and eco-friendliness make them an ideal choice when it comes to protecting garages, porches, and sheds.

Q: What surface treatments are available for color coated metal sheets?

A: (1) Powder Coating
Powder coating equipment (electrostatic spraying machine) is used to spray powder coating on the surface of the workpiece. Under the action of static electricity, the powder will be uniformly absorbed on the surface of the workpiece to form a powder coating; the powder coating flows through high-temperature baking. It cures flat and becomes the final coating with different effects (different effects of powder and paint).
(2) Liquid Painting/Wet Painting
Use pressure or electrostatic force to attach paint or powder to the surface of the workpiece to make the workpiece have anti-corrosion and appearance decoration effects.
(3) Electroplating/Plating
Through a chemical reaction, a layer of other metal is attached to the surface of the material to increase the corrosion resistance of the metal and achieve a certain beautification effect. It is a commonly used surface treatment method, such as electro galvanized, electroplated nickel, etc.
(4) Chromate/Conversion Coating
Chromate conversion coating has the advantages of low cost, simple process and wide application, and it is one of the most mature surface treatment technologies at present.
(5) Spray Paint
Using a special paint spray gun, the compressed air jet is used to form an air pressure difference with the pipe connecting the paint storage tank, so that the paint liquid is sucked up from the paint storage tank, and the compressed air flow is brought to the nozzle and blown into a fine mist. Spray evenly on the coated surface.
(6) Abrasive Blasting/Sandblasting
It is a process that uses compressed air as the power to form a high-speed jet beam to spray the spray material on the surface of the workpiece to be treated at a high speed so that the appearance or shape of the outer surface of the workpiece surface is changed, and a certain degree of cleanliness and different roughness is obtained.

We're well-known as one of the leading color coated metal sheet manufacturers and suppliers in China. If you're going to buy high quality color coated metal sheet, welcome to get more information from our factory. Also, customized service is available.

Type 750 Steel Floor Bearing Sheet, Galvanized Steel Floor Decking Sheet, Galvanized Corrugated Steel Decking Sheet