Jixiang Full Holding Group Shanghai CO., LTD.

What Is Roll-Coated Aluminum Sheet?

Introduction to Roll-Coated Aluminum Plate

The roll-coated aluminum plate, also known as pre-roll-coated aluminum plate or pre-rolled aluminum plate, is an aluminum plate that has undergone acid, alkali, and chromate pretreatment. The color and pattern are printed onto the aluminum plate by rolling paint rollers, and then baking to cure the paint. This pre-roll-coats the paint layers on the surface of the aluminum plate, facilitating subsequent processing for customers without coating production lines. 


Advantages of Roll-Coated Aluminum Plate

1. Low Carbon and Eco-friendly Product Concept. Traditional spray coating processes have a high paint consumption rate with only about 50% efficiency and require a large amount of water, causing serious environmental pollution due to exhaust gases. The pre-roll-coated aluminum single plate uses a continuous roll-coating process, achieving a paint utilization rate of over 95% and very minimal water usage. During baking, the solvent exhaust gas is recycled, catalytically combusted, and the heat is reused, achieving zero exhaust gas emissions.  2. Stable and Reliable Product Quality. The pre-roll-coated aluminum single plate has good surface consistency and uniform film thickness, with color differences controlled within 0.5, ensuring the overall quality of the building's exterior curtain wall. At the same paint film thickness, the adhesion, impact resistance, and weather resistance of the pre-roll-coated aluminum single plate are significantly better than those of sprayed aluminum single plates. 3. Low Manufacturing Cost and Obvious Price Advantage. Due to its energy-saving, eco-friendly, and low-consumption features, the pre-roll-coated aluminum single plate can greatly save on project costs and enhance market competitiveness.  4. Low Logistics Cost and High Transportation Safety. The pre-roll-coated aluminum single plate can be directly transported to the construction site in the form of coils or plates, and can be cold-processed on-site according to the project schedule, significantly reducing logistics and transportation costs and minimizing unnecessary handling losses. 


exterior aluminium wall cladding


Production Process of Roll-Coated Aluminum Plate

The coating of roll-coated aluminum plates (or roller-painted aluminum sheet) typically uses fluorocarbon paint (PVDF) or PE paint. Comparatively, pre-roll-coated aluminum plates with fluorocarbon materials have a longer lifespan. Common roll-coated plates include single color pre-roll-coated aluminum plates, faux stone aluminum plates, wood grain aluminum plates, brushed aluminum plates, and customizable brick patterns, camouflage, chameleon effects, and other patterns. Roll-coated plates use 1000 and 3000 series alloy aluminum plates as the substrate, undergoing pretreatment processes like washing, acid-washing, and chromating, followed by multiple roll coatings and drying. The roll-coating process is pressure-printed type coating, providing stronger adhesion and wear resistance. Therefore, adopting a 2-coat-and-2-bake process is sufficient to meet a lifespan of more than 20 years. During roll-coating production, the paint utilization rate is over 99%, making it an efficient, energy-saving, and eco-friendly product with low construction costs. MRITOP manufactures roll-coated plates for direct sale, with no middlemen, offering low prices and high quality. 


wall panel aluminium


Applications of Roll-Coated Aluminum Plate

As a new material, roll-coated aluminum plates have very wide applications. Roll-coated plates with a thickness of 0.2mm-0.5mm can be processed into aluminum composite panels, used as exterior and interior wall decoration panels for building curtain walls. Aluminum magnesium manganese roofing panels, typically 0.5mm-1.2mm thick, are also a type of roll-coated plate, used in roofing and wall system projects. Plates with a thickness of 2.0mm-4.0mm can be cut and fabricated into aluminum single plates, used in pathways, subway stations, airports, train stations, large shopping malls, high-speed rail locations, and other places, showing even more extensive uses.