Zero Spangle Coil

Zero Spangle Galvanised Steel Coils Anti finger print/skin pass/oiled/dry/chromated and their uses

Zero spangle galvanised steel coils, also known as zinc-coated steel coils, are an essential component in various industries due to their exceptional corrosion resistance and durability. In this article, we will explore the different finishes and treatments applied to zero spangle galvanised steel coils, including anti-fingerprint coatings, skin pass treatment, oiled and dry finishes, and chromated coatings. Understanding these various options and their applications will provide valuable insights for industries such as construction, automotive, household appliances, and electrical equipment. Let us delve into the world of zero spangle galvanised steel coils and discover the benefits they offer.

Zero Spangle Coil


Overview of the Galvanization Process

Galvanization is a process in which a protective layer of zinc is applied to steel to prevent rust and corrosion. The steel coils are dipped into a molten zinc bath, allowing the zinc to bond with the steel, and forming a protective coating. This process provides excellent protection against atmospheric corrosion, making zero spangle galvanised steel coils ideal for various applications.

Anti-fingerprint Coating for Zero Spangle Galvanised Steel Coils

Understanding Anti-fingerprint Coatings

Nobody likes leaving fingerprints behind, especially on surfaces that are meant to look clean and pristine. That’s where anti-fingerprint coatings come in. Applied to zero spangle galvanised steel coils, these coatings minimize the appearance of fingerprints and smudges, keeping the surface looking sleek and professional.

Benefits and Advantages of Anti-fingerprint Coatings

The primary benefit of anti-fingerprint coatings is that they reduce the visibility of fingerprints, making maintenance and cleaning much easier. This is particularly important for applications where aesthetics are crucial, such as architectural facades or household appliances. Additionally, these coatings can improve the overall durability of the galvanised steel by providing an extra layer of protection against oils and dirt.

Application Techniques for Anti-fingerprint Coatings

Anti-fingerprint coatings are typically applied through a process called “roll coating.” This involves passing the steel coils through a series of rollers, which evenly distribute the coating onto the surface. The coated coils are then cured at high temperatures to ensure adhesion and durability. With the application of anti-fingerprint coatings, zero spangle galvanised steel coils look great and maintain their appearance over time.

Skin Pass Treatment for Zero Spangle Galvanised Steel Coils

Explanation of Skin Pass Treatment

Skin pass treatment is a mechanical process that involves passing the galvanised steel coils through a series of rollers to improve their flatness and surface quality. This treatment helps to enhance the appearance of the steel and provide a more uniform texture. It also reduces the risk of surface defects, such as waviness or excessive roughness.

Importance of Skin Pass in Galvanised Steel Manufacturing

Skin pass treatment plays a vital role in the manufacturing of zero spangle galvanised steel coils by improving their surface finish and ensuring dimensional accuracy. The process helps to remove any irregularities that may have occurred during the galvanization process, resulting in a smoother and more visually appealing product. Additionally, skin pass treatment can enhance the formability and weldability of the steel, making it easier to work with in various applications.

Effectiveness of Skin Pass Treatment on Zero Spangle Galvanised Steel Coils

The effectiveness of skin pass treatment can be seen in the improved flatness and surface quality of zero spangle galvanised steel coils. By reducing surface defects, the treatment enhances the overall appearance and ensures consistent performance of the steel. This makes it a preferred choice for applications that require high-quality, visually pleasing surfaces, such as automotive body panels and household appliances.

Oiled Finish for Zero Spangle Galvanised Steel Coils

Overview of Oiled Finish

An oiled finish is a protective coating applied to zero spangle galvanised steel coils to prevent corrosion and maintain their appearance during storage and transportation. The oil serves as a barrier against moisture, preventing the steel from coming into direct contact with air and moisture, which could lead to rust formation.

Benefits and Uses of Oiled Finish

The primary benefit of an oiled finish is its ability to protect zero spangle galvanised steel coils from corrosion, particularly during transit or storage. The oil acts as a temporary coating, providing a barrier against moisture and preventing the onset of rust. Additionally, the oiled finish minimizes the risk of scratches or abrasions on the surface of the steel, preserving its aesthetic appeal.

Applying Oiled Finish to Zero Spangle Galvanised Steel Coils

The application of an oiled finish typically involves applying a thin layer of corrosion inhibitor oil onto the surface of the zero spangle galvanised steel coils. This can be done through various methods, such as roll coating or spray application. The oil is then evenly distributed and left to dry, forming a protective film. The oiled coils are then ready for storage or transportation, ensuring their long-lasting quality and appearance. Remember, if you touch the coils, be prepared to leave your fingerprints behind!


Dry Finish for Zero Spangle Galvanised Steel Coils

Understanding Dry Finish

Dry finish refers to a coating applied to zero spangle galvanised steel coils that leaves a clean, smooth surface without any oily residue. This finish is achieved by eliminating the use of oil during the galvanisation process, resulting in a dry surface that is free from fingerprints and smudges.

Advantages and Applications of Dry Finish

One of the main advantages of a dry finish is its improved aesthetic appeal. Without the presence of oil, the surface of the galvanised steel coils looks clean and professional, making them ideal for applications where appearance is important.

In addition, the absence of oil reduces the risk of contamination, especially in industries that require strict cleanliness standards, such as food processing or medical industries. The absence of fingerprints and smudges also makes it easier to handle and transport the coils without leaving any marks.
Dry finished zero spangle galvanised steel coils are commonly used in the manufacturing of furniture, interior decoration, and architectural components. Their clean appearance and resistance to corrosion make them a popular choice for both indoor and outdoor applications.

Process of Achieving a Dry Finish on Zero Spangle Galvanised Steel Coils

To achieve a dry finish on zero spangle galvanised steel coils, the traditional oiling process is bypassed. Instead, a different coating technique is employed, such as using an anti-fingerprint coating or a skin pass process. These methods help to maintain the integrity of the galvanisation while providing a dry and clean surface.

It is important to note that the specific process may vary depending on the manufacturer and the desired properties of the finished product. By eliminating the need for oil, the coils can be immediately ready for use without any additional cleaning or preparation.

Chromated Coating for Zero Spangle Galvanised Steel Coils

Explanation of Chromated Coating

Chromated coating is a protective layer applied to zero spangle galvanised steel coils. It consists of a thin layer of chromate, which is a compound containing chromium. This coating enhances the corrosion resistance of the steel by acting as a barrier against moisture and other corrosive elements.

Benefits and Features of Chromated Coatings

Chromated coatings offer several benefits that make them a popular choice for protecting zero spangle galvanised steel coils. Firstly, they provide excellent corrosion resistance, prolonging the lifespan of the steel and reducing the need for frequent maintenance.

Additionally, chromated coatings also enhance the adhesion of paint or other coatings that may be applied over the steel surface. This makes them suitable for applications where the steel needs to be further treated or customized.

Another advantage of chromated coatings is their versatility. They can be applied to a wide range of industries, including construction, automotive, and electrical equipment, among others.

Application Techniques for Chromated Coatings on Zero Spangle Galvanised Steel Coils

The application of chromated coatings on zero spangle galvanised steel coils can be done through a variety of methods, including spray coating, dip coating, or roll coating. These techniques ensure uniform coverage of the chromate layer on the entire surface of the coil.

It is important to follow the manufacturer’s guidelines and specifications to ensure proper application of the chromate coating. This helps to achieve consistent results and maximize the protective properties of the coating.

Applications and Uses of Zero Spangle Galvanised Steel Coils

Construction Industry

Zero spangle galvanised steel coils find extensive use in the construction industry. They are used for roofing, wall cladding, structural components, and various other applications. The corrosion resistance and durability of these coils make them an ideal choice for withstanding the harsh environmental conditions often encountered in the construction sector.

Automotive Sector

In the automotive sector, zero spangle galvanised steel coils are used for manufacturing various parts and components. These coils are commonly used to produce car frames, body panels, exhaust systems, and chassis components. The galvanised coating provides protection against corrosion, ensuring the longevity of the parts and enhancing the overall safety and performance of vehicles.

Household Appliances

Zero spangle galvanised steel coils are also widely used in the manufacturing of household appliances. From refrigerators and washing machines to ovens and air conditioning units, these coils provide a durable and corrosion-resistant surface. The clean and smooth appearance of the coils is also aesthetically pleasing, making them a popular choice for designers and manufacturers.

Electrical Equipment

The electrical equipment industry utilizes zero spangle galvanised steel coils for various applications. These coils are used in the production of electrical enclosures, cable trays, switchgear cabinets, and other components. The galvanised coating helps protect against corrosion caused by moisture and improves the lifespan and reliability of the equipment.

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DANA Steel ( is an ISO 9001:2015 certified company, with rich experience of around three decades, we have always thrived hard in order to bring revolutionary changes to the steel industry; We have our state-of-the-art Cold Rolling Mill (CRM Complex) Situated in DIC (Dubai Industrial City) we proudly manufacture our products in Dubai, UAE.

Our market extends over a wide demographic as we export over products to around 50 countries including countries from the Indian subcontinent (Bangladesh, India, Nepal); Southeast Asian countries (Indonesia, Thailand, Vietnam); Middle-East countries including members of GCC  (GCC-Saudi Arabia, Bahrain, Kuwait, Jordan, and Oman)( Riyadh, Dammam, Khobar, Jeddah, Yanbu, Jubail Ibri, Salalah, Muscat, Sohar, Nizwa, Barka). We also have our markets extended to Africa (Djibouti) and South America. With our constant commitment to customer contentment, we can provide competitive prices and faster shipment to all our valuable clients.

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