{"id":10738,"date":"2021-03-26T12:06:59","date_gmt":"2021-03-26T12:06:59","guid":{"rendered":"https:\/\/resin-expert.com\/?p=10738"},"modified":"2023-04-09T15:11:49","modified_gmt":"2023-04-09T15:11:49","slug":"how-to-paint-aluminum","status":"publish","type":"post","link":"https:\/\/resin-expert.com\/en\/guide\/how-to-paint-aluminum","title":{"rendered":"How to Paint Aluminum – Instructions for Aluminum Painting"},"content":{"rendered":"

Aluminum is a non-ferrous metal that does not actually require painting at low loads. This is because it automatically surrounds itself with a layer of aluminum oxide, which then acts as a protective layer againstt weather-related influences. Why painting aluminum can still be useful in some situations and which aluminum paint is best to use, we tell you in our aluminum paint test and guide below.\u00a0<\/strong><\/p>\n\n

 <\/p>\n

 <\/p>\n

\n

Applications for Aluminum Paint<\/h2>\n

Unlike many other metals, aluminum does not necessarily have to be protected from external influences. It automatically forms a protective aluminum oxide layer. This layer renews itself regularly, provided it is abraded.<\/p>\n

However, this layer is not of high optical quality. It has a dull gray color that does not create a particularly aesthetic impression. Therefore, in various situations, it may be useful to apply aluminum paint to make the material look more visually appealing.<\/p>\n

Apart from this, processing with aluminum paint is also useful when the non-ferrous metal comes into contact with chemicals with a high pH value. If this is 8.5 or higher, you should paint the aluminum.<\/p>\n

\"Aluminum<\/p>\n

Also, if the aluminum is in regular contact with brass, bronze, copper and steel under the influence of moisture, it should be protected with a high-quality aluminum paint.<\/strong><\/span><\/p><\/blockquote>\n

 <\/p>\n

 <\/p>\n

Difference Between Anodized and Non-Anodized Aluminum<\/h2>\n

Anodizing is a surface pretreatment of aluminum, which in its early days was referred to as “anodic oxidizing”. In this process, an oxide layer is applied to the material by means of an electrochemical process. This is formed from the aluminum used instead of being applied externally.<\/p>\n

The advantage is that the material is more or less fused with its protective layer – the latter is integrated into the aluminum and protects it not only from the outside, but also from the inside. The layer thicknesses vary from five to 25 micrometers depending on the intended use of the aluminum: The higher the stress on the component will be, the thicker the anodized layer should be.<\/p>\n

Anodized aluminum is extremely resistant to weathering and corrosion. The appearance of the material is preserved longer and the longevity is effectively increased.<\/p>\n

\"Applying<\/p>\n

If you want to paint anodized aluminum, then thorough surface preparation is essential. This is because in order to paint anodized aluminum, the protective oxide layer must be fully ground off, for example by sandblasting. How exactly you can paint anodized aluminum, we will tell you in detail in a later section.<\/p>\n

If it is purely about the appearance of the material instead of painting the aluminum, you can have it anodized again. It is possible to choose different colors.<\/strong><\/span><\/p><\/blockquote>\n

 <\/p>\n

 <\/p>\n

Materials Needed for Painting Aluminum<\/h2>\n

The following materials are needed for aluminum painting.<\/p>\n

    \n
  • <\/i> Sandpaper and\/or sanding fleece<\/strong><\/li>\n
  • <\/i> A suitable degreaser, such as methylated spirits, acetone, or a cleaning agent from the trade<\/strong><\/li>\n
  • <\/i> The paint<\/strong><\/li>\n
  • <\/i> Foam roller, brush, or spray gun, depending on which tool you want to use<\/strong><\/li>\n<\/ul>\n<\/div>\n

     <\/p>\n

     <\/p>\n

    Recommended Coatings for Aluminum<\/h2>\n

    We have carried out an extensive aluminum paint test and list below what we deem to be the best primers and paints.<\/p>\n

     <\/p>\n

    Best Aluminum Primer: RUST-OLEUM Stops Rust Flat Aluminum Primer<\/h3>\n

    This aluminum primer from the well-renowned Rust-Oleum brand offers a durable, weather- and corrosion-resistant coating that has been formulated specifically for use on aluminum galvanized metal. With a water-based acrylic formula, this primer will dry much more quickly. The flat, gray finish you end up with will provide not only durability and protection, but also the ideal base for adhering to other materials and topcoats, such as paint.<\/p>\n