Passivation is an essential process for metal finishers as a step to prevent corrosion. Typically this is done using citric or nitric based chemistries which remove free iron from the surface so that the protected layer is less likely to react with air and cause corrosion.
Our experts recommend Citrisurf® because it eliminates the step of cleaning parts by creating a single bath, making this a one step process. This is also a favorable choice for our customers because it is safer for employees to handle and more environmentally friendly than your nitric acid alternative.
Additionally, this product meets industry standards, including ASTM A967, A380 and AMS 2700.