Powder Coated Aluminum

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In order to select special colors and a different surface appearance compared to anodized aluminum, a machined front panel can additionally be powder coated.

Properties of powder coated surfaces

Powder coating (also powder painting) is a process in which an electrically conductive material is coated with oppositely charged paint particles and then thermally cured. This not only creates an additional corrosive protection layer and a "smoother" surface, but a broad range of colors can also be used.

For powder coating, specially pre-treated anodized panels without color ("natural") are used.

Available colors

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Available thicknesses

The following table lists the standard colors available, which can be achieved by powder coating the anodized aluminum panels with thicknesses of 1.5 to 10 mm in stock.

Color impression

Color

RAL

Available panel thicknesses [mm]

1

1.5

2

2.5

3

4

5

6

8

10

Tolerance ± [mm]

0.1

0.1

0.1

0.1

0.1

0.1

0.25

0.30

0.40

0.40

Black

9005

 

 

 

 

 

 

 

 

 

 

Sulfur Yellow

1016

 

 

 

 

 

 

 

 

 

 

Signal Yellow

1003

 

 

 

 

 

 

 

 

 

 

Gray

Company standard

 

 

 

 

 

 

 

 

 

 

Traffic White

9016

 

 

 

 

 

 

 

 

 

 

Gray White

9002

 

 

 

 

 

 

 

 

 

 

Light Gray

7035

 

 

 

 

 

 

 

 

 

 

Clay Brown

8003

 

 

 

 

 

 

 

 

 

 

Signal Green

6032

 

 

 

 

 

 

 

 

 

 

Turquoise Blue

5018

 

 

 

 

 

 

 

 

 

 

Signal Blue

5005

 

 

 

 

 

 

 

 

 

 

Signal Red

3001

 

 

 

 

 

 

 

 

 

 

Can be used with aluminum panels in stock

The powder coating of the front panels is carried out after machining. This also covers the bright processing areas, which may otherwise only be avoided by subsequent anodization . Please note that the coating layer adheres to non-corrosion protected surfaces and it is advantageous for the longevity of the product if the coating is not exposed to any mechanical stresses at the relevant places which could tear it.

Minimum and maximum processing areas

The maximum and minimum dimensions for machinable main plate surfaces correspond to the values for anodized aluminum panels.

Differentiation to the anodized colors

The color of anodized aluminum is produced by color pigments that lie beneath a transparent covering layer and the shiny metallic gray of the original metal layer is still more or less optically permeable. Thus the metallic character of the substrate basically remains visible for any color.

In contrast, a powder coated surface has a homogeneous paint layer ensuring 100% cover which is at the same time slightly shiny, hiding the nature of the substrate.

Whereas the range of colors for anodized aluminum is limited for procedural reasons, almost any color can be used in powder coating. Using admixtures it is possible to achieve different surface appearances including a metallic look.

Threads, fits etc. can be produced after powder coating

Front panels are powder coated in principle following the mechanical processing, whereby the paint layer does not have a uniform thickness, but systematically increases particularly along the edges and at corners.

In order to obtain the required fits and above all threading in the defined dimensions, it is also possible for powder-coated main plates to produce every milling element and engraving object after the powder coating process (check the box "Mill after surface finishing" in the properties dialog box).