Mild Acidic Liquid Brightener - Freiborne Industries, Inc Mild Acidic Liquid Brightener - Freiborne Industries, Inc

Product Type: Freiclean ABL

Mildly acidic liquid brightener for ferrous and non-ferrous metals.


FREICLEAN ABL-2 is an acidic cleaner/brightener developed specifically for Aluminum substrates.

FREICLEAN ABL-2 is designed for immersion applications and is a liquid material for ease of handling.

Fill the process tank to the two-thirds level with water and add the required concentration of FREICLEAN ABL-2 with stirring. Bring the bath up to operating temperature and level.

Concentration can range from 5 to 30% by volume depending on the severity of the oxide and the amount of cleaning time available.

Temperature can range from ambient to 170°F with process times normally in the range of 30 seconds to 30 minutes.

The concentration of the FREICLEAN ABL-2 solution may be determined by the following method:

Free Acid:
Pipet a 1 ml sample of the solution to be tested into a 125 ml Erlenmeyer flask or suitable beaker and add 5-10 drops of Indicating Solution 11 (Bromophenol Blue) and titrate with Testing Solution 11 (0.1 N NaOH) to a blue-green endpoint (absence of yellow). Record the buret reading as the Free Acid.

% by volume FREICLEAN ABL-2 = 1.49 x mls Testing Solution 11

Additional Information

Temp Range

Ambient – 170


Carbon Steel, Galvanized Steel, Stainless Steel, Aluminum, Copper/Brass



Product Type


Product Line




Product Description

The diverse needs of the metal treament industry have lead us to develop over 100 different cleaner products, with one to fit almost every situation. Whether spray or immersion application, steel, aluminum, brass, or another alloy we have a freiclean product to fit your needs.

Ordering Information

To place an order, please contact our knowledgeable and professional customer service team:

If you are unable to find what you need or require a custom formula, please call and speak with one of our knowledgeable Formula Engineers. They can walk you through the ordering process quickly and professionally.