In today’s architecture and manufacturing field, choosing the right material is very important for the success of the project. The color coated Galvalume coil have become a leading solution that combines strength, life and visual appeal. But what does the “120 g” specification really mean and why is it important to your project? This comprehensive guide studies 120 g color coated Galvalume steel coil in detail, including its composition, obvious advantages, technical specifications and various applications, to help you make an informed decision.
A 120 color coated Galvalume steel coil embodies advanced material engineering technology through its multi-layer structure. The term “Galvalume” refers to a unique metal coating on the basic steel, which consists of about 55% aluminum, 43.4% zinc and 1.6% silicon. The name “120g” indicates that the coating weight is 120 per square meter, providing sufficient corrosion protection. The last layer of “color coating” includes factory-applied baking finish, which is cured by heat to form a durable and weather-resistant surface, with a variety of colors and finishes to choose from.
· Appearance: protective paint coating.
· Primer: Enhance adhesion and protection.
· Surface Treatment: Improve the adhesion of paint surface.
· Metal Coating: Aluminum-Zinc Alloy (Galvalume).
· Base Material: High-Strength Steel.
Why does this special material become the first choice in the world? The remarkable advantages comes from the strong synergistic combination of galvalumes substrate and the high-quality painting system.
Galvalume coating provides a dual defense mechanism. The aluminum component form a stable protective barrier to prevent air from entering, while zinc provides active sacrifice protection for the bottom steel at the cutting edges or scratches. According to a study by the International Zinc Association, in many environments, the corrosion resistance of 55% Al-Zn coatings is 2 to 4 times that of the traditional zinc coating with the same thickness. [source: International Zinc Association, “Properties of 55% Al-Zn Coating”].
The high aluminum content gives Galvalume excellent heat reflectance (reflecting up to 80% of visible light), which significantly helps keep buildings cooler in hot climates, thereby reducing energy costs for air conditioning. This inherent property makes the underlying coated steel highly efficient for roofing applications, contributing to greener building practices.
The high-strength steel core provides excellent tensile strength, enabling it to withstand huge physical stress and load. At the same time, the Galvalume coating itself is more malleable than a standard galvanized coating, which means that this advanced coated steel coil can be easily formed, bent and formed with standard equipment without cracking or peeling of the coating.
The final color coating has a variety of colors and finishes (e.g., smooth, dull) and textures. This baked-on finish is highly resistant to chipping, fading, and general weathering. High performance coating systems such as PVDF (polyvinylidene fluoride) are famous for their ability to maintain color and luster for decades, which greatly reduces the long-term maintenance requirements and costs. A report of American Coil Coating Association (NCCA) emphasizes that even in harsh environment, correctly applied coil coatings can keep their integrity for more than 20 years. [source: NCCA, “Performance data of coil coating”].
Runfei brand 120 g color coated Galvalume steel coil produced in Tianjin, China meets international quality standards, including AISI, ASTM, BS, d in, GB and JIS standards. This product has passed the ISO 9001 quality management certification, SGS certification and RoHS compliance certification, ensuring environmental safety. The coated steel adopts the standard shipping package suitable for global transportation, and there are two options, horizontal and vertical, to meet different transportation needs.
The manufacture of this high-quality coated steel requires an accurate and continuous process.
· Surface Preparation: The Galvalume coil undergoes thorough cleaning to remove impurities.
· Chemical Treatment: Application of conversion coating to obtain the best adhesion of coating.
· Primer Coating: the base coating used to enhance corrosion resistance.
· Top coat: color top coat coating with advanced coating technologies.
· Thermal curing: high temperature baking, perfect fusion of paint.
· Quality Inspection: strict inspection before packing and shipment.
This kind of multi-purpose coated steel is suitable for many industries.
· Building Envelopes: an ideal choice for industrial roofs, commercial wallboard and building slabs.
· Thermal insulation system: It is very suitable for sandwich panels in cold storage and controlled environment.
· Functional Components: suitable for garage doors, partition walls and decorative elements.
· Special purpose: used in home appliance manufacturing and auto parts.
A: Compared with the traditional galvanized steel, Galvalume has better corrosion resistance, especially in harsh environment, and has excellent thermal reflectivity.
A: The weight of this coating represents the best balance between protection and cost-effectiveness, extending the service life suitable for most architectural and industrial applications.
A: The factory-baked finish offers exceptional durability against UV radiation, moisture, and temperature variations, maintaining appearance and protection for 20+years with proper selection of paint systems.
A: Runfei combines manufacturing expertise with quality assurance certifications to provide competitive prices, flexible order and reliable international transportation capacity.
The 120 g Color Coated Galvalume steel coil represents an optimal solution for projects requiring durable, aesthetically pleasing, and cost-effective building materials. Its time-tested Galvalume protection combined with high quality color coating ensures long-term performance and value. For professionals seeking reliable coated steel solutions, the Runfei brand offers certified quality, technical expertise, and customer-focused service that make it an outstanding partner for your next project.
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