Protection Against Corrosion for the Aluminum Extrusion Industry

protection against corrosionWhen considering the ideal finishing option for extruded aluminum parts, products, and components, it is crucial to have a clear understanding of your desired outcomes for the project. Certain types of finishing offer enhanced protection against corrosion and other forms of damage during usage, while others can provide a textured and visually appealing appearance. Painting, powder-coating, and anodizing aluminum are widely used in the aluminum extrusion industry.

Once a profile is created and aluminum alloys are extruded to the desired shape and size, the subsequent phase can be incorporated based on specific requirements. At Silver City Aluminum, we take care of all post-extrusion services in-house, ensuring that secondary operations and finishing are handled with precision and expertise. We are dedicated to ensuring the highest level of quality control for every client by closely monitoring and inspecting each phase of production.

Powder-Coating and Anodizing Aluminum

The method for applying finishing to custom aluminum extrusion can differ based on the medium used. Applying paint in a powder form to an object that has been electrostatically charged is part of the powder-coating process. Proper pre-treatment of the surface is essential to ensure adhesion of the paint, as no solvents are needed for powder-coating. At Silver City, we have established partnerships with various powder coaters and anodizers to offer our clients a personalized finish. The time it takes to complete this process depends on the specific item and the various powder-coating and anodizing methods employed.

The pre-treatment process for powder-coating and anodizing aluminum is comparable to other finishing solutions. Every speck of dust, grease, and other particles is meticulously eliminated to guarantee impeccable adhesion. This ensures that the powder-coating remains intact and securely adhered to the finished part. The powder is applied using an electrostatic spray gun. Using a positive charge allows the powder-coating material to effectively bond with the custom aluminum extrusion, which is electrically grounded. After the powder is applied, the extrusions are heated in a specialized curing oven, ensuring that the coating is evenly melted. The extrusions are cooled to ensure a smooth and hardened coating, meeting the required specifications.

Coating for Extruded Aluminum Parts

Our clients have different preferences when it comes to finishes – some opt for a painted finish, while others prefer powder-coating. In the aluminum extrusion industry, it is common to utilize both methods once the client has created a profile and we have extruded aluminum alloys into the desired shape and size. Using powder-coating and anodizing techniques on aluminum allows for a wide selection of vibrant colors, adding a touch of elegance to the final product. Many people consider this option to be more environmentally-friendly than liquid paint because it does not require a solvent. The thick coating adheres to the aluminum, offering enhanced protection. When applied by a skilled professional, it forms a durable surface that resists chipping and peeling even under heavy use.

Many people believe that powder-coating is a more environmentally-friendly option compared to liquid paint and other finishing options because it does not cause any harm to the environment during the spraying process. Some people consider the solvents, known as Volatile Organic Compounds (VOCs), to be hazardous. Utilizing a finishing solution that is free from VOCs or other solvents can greatly minimize the environmental impact for clients aiming for LEED Certification or any other environmentally-friendly recognition for their project. In addition to saving materials, an advantage is that any excess powder sprayed during the finishing process can be collected and reused, minimizing waste.

The Aluminum Extrusion Industry

If powder-coating isn’t suitable, Silver City Aluminum also offers anodizing and liquid paint options. Our paint line is constantly in high demand among clients from various industries, running non-stop to meet their needs. Anodizing offers a high-quality appearance and texture, with a wide range of color choices to choose from. Clear anodizing and black anodizing are widely preferred, while multi-color anodizing and custom anodizing finishes are frequently requested by our clients.

We approach our painting services with utmost dedication, utilizing a cutting-edge vertical electrostatic polycron line that can effectively accommodate parts and pieces measuring up to twenty-one feet in length. Our team utilizes a four-stage pre-wash system to guarantee optimal adhesion for the custom aluminum extrusion parts. Following this, the pieces are carefully processed through the polycron line for paint application.

Get a Free Estimate for Our Services

Call Silver City Aluminum at 508-824-8631 to speak with one of our agents. We are here to address any inquiries you may have regarding standard and custom aluminum extrusion. Additionally, we can provide information on our various finishing options, including painting, powder-coating, and anodizing aluminum.