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Cleaning Aluminum without Corrosion

Q. How is galvanic corrosion prevented when cleaning aluminum?

A. Aluminum is an active metal that is somewhat high on the “anodic index” of the galvanic series. If aluminum is cleaned with other metals present, you can create a battery and get galvanic corrosion. Aluminum should not be cleaned in the presence of metals that are significantly higher or lower on the anodic series; higher on the anodic scale such as zinc, magnesium or beryllium metals and lower on the anodic scale such as tin, brass, bronze, copper, silver, nickel and rhodium.

Cleaning Aluminum with Alconox

Q. Which Alconox cleaners can be used on Aluminum?

A. The Alconox brand cleaners recommended for cleaning aluminum are Alconox, Liquinox, Tergazyme, Alcojet, Alcotabs, Detojet, Citranox, Luminox, Citrajet, Solujet and Tergajet. Detergent 8 is not recommended for cleaning aluminum. Aluminum forms a natural passive layer in air that allows it to be successfully cleaned without adverse reactions with cleaner. A passive layer forms in under an hour, provided there is no oily film present. Once the passive layer is formed, the recommended Alconox brand cleaners can be used to clean the aluminum at concentrations of less than 5% at 90 deg C or less for up to one hour.

Low and Non Volatile Organic Compound VOC Cleaners

Q. To comply with air quality requlations, the use of low volatile cleaning compounds is often required. How much volatile organic compounds (VOC) are in Alconox cleaners? A. The use of aqueous cleaners

Shipping Hazmat Liquid Detergents

Q. How can I ship cleaners that are corrosive liquids by air?
A. The three corrosive liquid cleaners that need proper packaging for air shipment are: Detojet, Solujet, and Detergent 8.

Removing Detergent 8

Q. What is best way to remove Detergent 8 from recirculating DI rinse tank. We currently have 1 activated charcoal canister followed by two mixed resin beds…all at 80C. Do you have a recommended detergent for removing stearic acid (solid form)? One that work with our mixed bed system?

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