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Oakite^® Aluminum Cleaner 166

Non-silicated, non-etch alkaline soak cleaner for aluminum and its alloys.

Oakite Aluminum Cleaner 166 is a non-silicated, non-etch, powdered alkaline soak cleaner for removing stencil markings, fingerprints, stamping oils, mill oils, light grease and some buffing compounds from aluminum and its alloys. Aluminum Cleaner 166 meets BAC 5749 Alkaline Cleaning Specification.

Combining exceptional cleaning ability with a high degree of safety to aluminum, it’s ideal for cleaning prior to chromating, anodizing, etching, vitreous enameling or other operations where silicate residuals are undesirable.

Oakite Aluminum Cleaner 166 also finds application for soak cleaning of other metals such as steel and galvanized steel prior to phosphating.

CHEMICAL CHARACTERISTICS

chemical composition.............................................. blend of surfactants, phosphates, borates and

inhibitors

physical form ........................................................... as received: free-flowing tan powder

   as used: tan solution

odor...................................................................... bland

bulk density.................................................................................... 972 g/L (8.1 Ib/gal)

hygroscopic tendency.................................................................. moderate

foaming tendency......................................................................... moderate at 60 g/l (8 oz/gal)

recommended diluent ............................................ water

maximum solubility................................................ 105 g/L at 71°C 14 oz/gal at 160^oF)

behavior in hard water............................................. sequesters

rinsability....................................................................................... excellent

biodegradable surfactants....................................... yes

phosphate-free.............................................................................. no

normal working concentrations ............................... 45 to 60 g/L (6 to 8 oz/gal)

normal working temperatures................................... 54° to 66°C (130° to 150°F)

pH at working concentrations.................................. 9.1 at 45 g/L (6 oz/gal) of water

effect of working solutions on metals................................. rate of metal loss from one-hour immersion in

Oakite Aluminum Cleaner 166, 45 g/L (6 oz/gal) of water, 66°C (150°F), projected for one year, is as follows:

metal (alloy               mm/yr              in/yr

steel                                      0.00                 0.000

stainless steel                      0.00                  0.000

aluminum (2024)          1.96                        0.077

zinc galvanized steel    1.80                 0.071

zinc plate                      8.66 (attacks) 0.341

brass                         0.38 (stains) 0.015

copper                       0.51 (stains) 0.020

magnesium                attacks               attacks

APPLICATION PROCEDURES

1.      Clean solution tank thoroughly before use.

2.      Draw water to operating level of the tank and heat to 49°C (120°F).

3.      Add sufficient Oakite Aluminum Cleaner 166, while stirring, to make a working solution of 45 to 60 g/L (6 to 8 oz/gal) of water. Heat from 54° to 66°C (130° to 150°F) maximum, and begin processing parts.

4.      Rinse. In most instances, temperatures should not exceed 66°C (150°F), particularly where significant surface oxidation is present. For aluminum alloys having low surface oxidation, somewhat higher temperatures up to 79°C (1 75°F) may be used with safety. Where steel is the metal being cleaned, higher temperatures up to 82°C (180°F) may be used to speed the cleaning action.

Solution Control: Concentrations are titrated using Gardotest Procedure 126. Sample Size: 1.0 mls                                                          Factor: 2.4 (oz/gal)

18.0 (g/l)

EQUIPMENT

The Chemetall Oakite Electrodeless Conductivity/Concentration Control System and Chemical Metering Pump can be used to monitor and automatically maintain the concentration of this product using conductivity. Please contact the Chemetall Oakite Process Equipment and Engineering Department for specific recommendations.

NOTES ON USE (See Material Safety Data Sheet)

Steel solution tanks and heating coils are recommended.

Safety and Handling Precautions: Oakite Aluminum Cleaner 166 is a mildly alkaline material. Direct contact may cause irritation of eyes and skin. It is harmful if swallowed. Do not get in eyes. Avoid prolonged skin contact. Wash thoroughly after handling. Do not take internally.

First Aid in Case of Contact: For eyes, flush with plenty of water for at least 15 minutes. Get medical attention. For skin, flush with plenty of water, then wash with soap and water. If swallowed, give several glasses of water or milk to drink. Contact a physician. If inhaled, remove from exposure.

KEEP OUT OF REACH OF CHILDREN