The sulfuric acid solution is obtained by diluting the electrolyte for car batteries with distilled water in proportions of one to one. Having bought a canister with a capacity of 5 liters, you can get 10 liters of solution.
Mixing, when water is added to the acid, is accompanied by chinese thailand data heat release, and it literally boils, splashing. Therefore, for safety reasons, sulfuric acid is poured into a container with water.
Before anodizing aluminum, it undergoes chemical preparation. Chemical preparation is a degreasing process. In industrial conditions, the treatment is carried out with caustic soda or potassium. But at home, it is better to use laundry soap. A toothbrush and soap solution remove dirt from the surface well. After that, the blanks are first washed with warm water, and then with cold water.
An alternative to laundry soap is washing powder. Dissolve it in a closed plastic container and place the parts to be treated there, shake vigorously. Then wash the parts and dry them with a stream of hot air. Active oxygen contained in washing powder protects degreased items, even if you take them with bare hands.
Preparation of electrolyte
Acid solutions are considered unsafe reagents, so another type of solution is used to anodize aluminum at home. To prepare it, use salt and soda, which are always at hand.
To prepare the electrolyte, take two plastic containers. In them, mix the salt and soda mixtures, observing the proportion: 9 portions of distilled water per portion of salt or soda.
Anodizing at home