Colouring of aluminium

A wide range of colors

Process description

We dye aluminium using two methods: chemical and electrochemical. Chemical colouring of aluminium coatings consists in immersing them in a specific dye for a defined period of time, depending on the desired colour intensity. The dye is absorbed into the oxide layer, creating a deep colour effect on aluminium. Electrochemical dying is much more complicated and requires the use of several technologies.


It is the method that enables to achieve colour films with many shades of brown and the colour that imitates appearance of stainless steel. The colours achieved by means of electrochemical process are very resistant to the effect of light. Films applied through electrochemical process are perfectly suitable for outdoor applications, due to their high resistance to corrosion.

Available colours:

Light brown (C33)
Dark brown (C34)
Black (C35)
Gold (Z33)
Stainless steel (Inox)


Available colours:

Black (C35)
Green (G1)
Blue (B1)
Light Gold (Z32)
Orange (O1)
Red (R1)

Coatings subjected to colourisation by means of chemical processes perfectly prove themselves in applications, where decorative properties are crucial factors. The applicability of coatings for outdoor applications depends on such factors, as the base material, thickness of the applied film and the selected colour. One has to be aware that shades of final colours may differ for various grades of base aluminium.


In mass production, we create custom-made colour. For further information, please contact our sales department.

Effect – Colorless Anodizing

Silver (C0)

Subject to the process

The colour of the oxide coating on aluminium depends on the type of input material. The importance lies in the type and content of alloying elements in the input material, as well as the conditions for obtaining the product.

We carry out colourization of aluminium products by means of two methods, with regard to the base material and the desired final effect:

  • the most homogenous coatings can be achieved on materials that have been mechanically deformed or subjected to thermal homogenization,
  • purely colourless coatings can be achieved only in case when pure aluminium is the base material for anodising.

Use of high-alloy materials as base metals makes the applied coatings more or less grey. Improper homogenization of alloys may lead to formation of stains and various discolorations on the metal surface.

Thickness of oxygen layers formed on the aluminium surface depends on the conditions of the anodising process, as well as on composition and structure of the base material – table. For low-alloy materials and workpieces made of pure aluminium the possible thickness of oxidised layers may vary from 5 to 25 μm, depending on the customer’s needs.

The hardness of coatings substantially depends on the parameters of the anodising process. For conventional coatings, the hardness ranges from 100 to 300 HV 0.05.

There is the rule that colourisation is the most efficient for coating applied onto pure aluminium (1xxx) or low-alloy materials (5xxx, 6xxx). On the other hand, alloys with high content of copper (2xxx) or zinc (7xxx) are quite difficult for application of colours. Cast alloys with the content of silicon above 3% are not suitable for anodising at all.


To place an order, please complete the following documents and send them via e-mail to or bring it personally to Anodal’s office. The office is open from Monday to Friday from 8 a.m. to 4 p.m. Our consultants will help in case of problems with completing the order.

Please prepare:

  • Technical drawings (PDF) (for sections bars – cross-sections with information about the length)
  • Service order according to the order form with the following information: aluminium grade and degree of hardening, designation of fixing (contact) points,
  • Other information that may be important, such as.: standards and codes that must be fulfilled, perimeter length for section bars, surface area calculated from the 3D development

Note! Components handed over to ANODAL must by right after manufacturing, with no preliminary treatment.

If components are to be sent by regular mail or courier:

  • Send a copy of the order via e-mail to the address
  • Attach all necessary technical drawings of the components to the e-mail
  • Place the legible name of your company in a well-visible place on the packing

While sending back the ready products:

  • Small packages are sent back by courier service at the expense of ANODAL, otherwise the postage expenses are added to the invoice,
  • Please check the integrity and content of the package in witness of the courier, in case of damage make up a relevant report,
  • The Stock Issue Confirmation Note (WZ), along with the VAT invoice, are attached to the package and placed in the plastic pocket along with the Bill of Lading (B/L),
  • Should the invoice be sent to an address different from the destination address of the package, please provide such information in the Service Order
Would you like to get samples of colours and surface finishing?

Please fill in the form below and we shall send you the catalogue via regular mail

Please contact our consultant


  • Open 8 a.m. – 4 p.m.
  • Ul. Matuszewska 14, Hall D2, Entrance E
  • 03-876 Warsaw


  • E-mail:


  • Mobile: 516-060-391
  • Tel.: 22-813-08-35 ext.: 1


  • Mobile: 508-312-583
  • Tel.: 22-813-08-35 ext.: 2

The Data Controller of your personal data, i.e. the entity deciding on the purposes and methods of their processing, is the company operating under the business name ANODAL SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ (detailed data in the Privacy Policy). Please be advised that providing personal data is necessary to contact you, and that you have the right to access your personal data, change it (including updating), as well as other rights described in the Privacy Policy.

PN Alloy Shiny Coloured Hard Protection Alloy composition
A11050A excellent excellent excellent excellentAl99.5
1200 very good very good excellent excellentAl99.0
2007 poor poor very good goodAl 4.0Cu 1.2Pb 1.1Mg 0.8Mn
2011 poor poor very good goodAl 5.5Cu 0.4Bi 0.4Pb
2014 poor poor very good goodAl 4.5Cu 0.9Si 0.8Mn 0.5Mg
2014A poor poor very good goodAl 4.5Cu 0.8Mn 0.7Si 0.5Mg
PA62017A poor poor very good goodAl 4.0Cu 0.7Mn 0.7Mg 0.5Si
PA72024 poor poor very good goodAl 4.4Cu 1.5Mg 0.6Mn
2030 poor poor very good goodAl 3.9Cu 1.2Pb 0.9Mg 0.6Mn
3003 good very good very good very goodAl 1.3Mn Cu
3004 good very good very good very goodAl 1.3Mn 1.1Mg
3005 good very good very good very goodAl 1.3Mn 0.4Mg
3103 good very good very good very goodAl 1.2Mn
3105 good very good very good very goodAl 0.6Mn 0.5Mg
PA435005 excellent excellent excellent excellentAl 0.8Mg
5005A excellent excellent excellent excellentAl 0.9Mg
5049 very good very good excellent excellentAl 2.1Mg 0.8Mn
5052 very good very good excellent excellentAl 2.5Mg Cr
PA135083 good very good excellent excellentAl 4.5Mg 0.7Mn Cr
5086 good very good excellent excellentAl 4.0Mg 0.5Mn Cr
5154A good very good excellent excellentAl 3.5Mg Mn Cr
5182 good very good excellent excellentAl 4.5Mg 0.3Mn
PA25251 very good very good excellent excellentAl 2.0Mg 0.3Mn
5454 very good very good excellent excellentAl 2.7Mg 0.8Mn Cr
PA115754 good very good excellent excellentAl 3.1Mg Mn Cr
6005A good very good very good excellentAl 0.6Mg 0.7Si Mn Cr
6016 very good excellent excellent excellentAl Si 1.0-1.5 Mg 0.25-0.6
PA386060 very good excellent excellent excellentAl 0.5Mg 0.5Si Fe
6061 good very good very good excellentAl 1.0Mg 0.6Si Cu Cr
PA386063 very good excellent excellent excellentAl 0.7Mg 0.4Si
PA46082 good very good very good excellentAl 0.9Mg 1.0Si 0.7 Mn
6106 good very good very good excellentAl 0.6Mg 0.4Si Mn
7010 poor poor good very goodAl 6.2Zn 2.4Mg 1.8Cu Zr
PA477020 poor good very good very goodAl 4.5Zn 1.2Mg Mn Cr Zr
PA97075 poor poor good very goodAl 5.6Zn 2.5Mg 1.6Cu Cr