KleerKleen™ 4000

Technical Data:

Description:Stainless Steel Passivation

KleerKleen 4000 is a high quality blend of chemicals formulated for the cleaning of stainless steel products. KleerKleen 4000 is a low foaming, pH neutral solution specifically designed to be compatible with the CitriSurf line of cleaning and passivation products, providing low cost and efficient removal of contaminants from the surface of stainless steel. KleerKleen 4000 can be used to effectively clean most metal surfaces by spray, scrubber, agitated tank, brush or mop.

Physical Properties:

Specific Gravity
Approx. wt. /gallon
Chemical Composition
Operating Temperature
Flash Point
Water solubility
Normal working concentration
pH at working concentration
8.44 lb/gal
Blend of Surfactants
Room temp or higher (120-180°F preferred)
3-6 % by volume
approx. 7.5


5 gallon or 55 gallon plastic containers. Larger sizes available upon request.

Application Procedure:

KleerKleen 4000 should be mixed with clean water (deionized or distilled water if desired) at a ratio of 3 to 6 parts of KleerKleen 4000 with 100 parts of water by volume to fill the tank used so as to adequately cover all parts to be cleaned. Polypropylene, stainless steel or equivalents should be used for construction of all tanks and devices used in the KleerKleen bath. Agitation of the solution in the tank is strongly recommended to attain optimum results. Optimum results can be obtained with many parts by using KleerKleen in an ultrasonic tank.Passivation Of Stainless Steel

Heat the solution for optimum performance. Teflon coated (or equivalent), stainless steel or titanium heating devices are recommended. Your tests should indicate the best bath working temperature for the products you manufacture. 120-180°F is typical. Room temperature could be adequate depending on the end use.

Completely immerse the parts to be cleaned in the solution for a period sufficient to remove all dirt, oils and contaminants from the surface. This is typically 5-15 minutes, depending on temperature, use of ultrasonics, and the kind and amount of contaminants. This should be determined by testing with your product. Rinse thoroughly with clean water and dry completely in air, or go on to the next phase of the process immediately. Drying can be accelerated by use of a hot air oven or other drying medium.

Notes on Use:

Although very safe in normal use, KleerKleen 4000 is a blend of chemicals designed for removal of oils and dirt from surfaces; and as such can cause irritation to the skin and other parts of the body. See Material Safety Data Sheet before using this material.


Replace KleerKleen cleaning bath when it appears dirty. Bath life may be extended by using a pump and filter on the tank.


Dispose of according to all federal, state and local regulations.


KleerKleen 4000 should be stored indoors at temperatures between 50°F and 100°F. (If accidentally frozen, thawing will return product to normal.)

Technical Services:

For technical assistance, please contact Stellar Solutions at (847) 854-2800.

Testing of your products with KleerKleen before using in production is recommended. Every product and production facility is different, and requires testing to ensure that KleerKleen is compatible with the particular situation. No warranty is implied, or may be given in writing or verbally without the written permission of Stellar Solutions, Inc.