There are several methods that help close the micropores.

[zihadhosenjm40]

For small parts it is 20-30 minutes, for large items - an hour and a half.
After the part is completely covered with a gray-blue coating, it should be taken out of the bath, washed under running cold water and wiped with a cotton wool soaked in a strong manganese solution to chinese overseas australia data by-products of the reaction. The surface should be shiny, light gray, smooth.


After the anodizing process at home, some products acquire a dark matte shade, it all depends on the anodizing mode. To paint anodized products, immerse them in a solution of aniline dye, which is heated to 50-60 degrees Celsius. Before work, filter the solution, because small grains of undissolved dye can form spots on the metal surface. The coloring intensity is usually no more than 15-20 minutes.

After the part has acquired a beautiful shade and a solid, not loose protective layer, it is necessary to fix it. The fact is that this coating at the micro level has a porous structure that is permeable to air and water. Such a layer protects the metal well from mechanical damage, but is weak against chemical damage.
The simplest is to boil the parts in a saucepan in water for half an hour after anodizing. It is better to use distilled water. You can also hold the parts in a steam bath, also for half an hour.



You already know that there are several technologies for anodizing aluminum and its parts. They differ in the conditions of the working process, and to be more specific, in the temperature of the electrolyte, which is the main factor that affects the quality of the anodic protective layer. At home, it is preferable to choose the cold anodizing option, because in this case the coating is of higher quality and thicker, and the part acquires a beautiful shade and shine.

Anodizing