Acidic degreasing is also applied for parts that require aluminum rust cleaning. Since rust and scale can be cleaned with acidic chemicals, these types of products should be used. It can be used for aluminum, iron, steel, zinc alloy parts.
Although acidic degreasing baths can work without the need for heating, degreasing and rust removal is more effective if they work hot. Their general contents consist of surfactants, emulsifiers, inhibitors and acids (phosphoric, sulfuric, hydrochloric, hydrofluoric, etc.). Since the treatment solutions have strong acidic properties, the bath equipment should be made of PP or stainless steel.
Method of Use:
It can be worked at concentrations of 5 - 50% depending on the contamination of the metal on the surface. The process time increases as the bath concentration decreases and can reach 1 - 2 hours. Although high temperatures are not required, heating may be recommended as it will increase the reaction rate with heat. The points to be considered in acidic degreasing baths are total acid and time. If the bath concentration decreases, the degreasing rate decreases and additives are required.
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