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Overview
Background Historically, anodizing chemical additives have been available to the metal finishing industry, providing quality anodized metal products and good industry test results. Although these “tried and true” specialty chemicals have passed the test of time, these aluminum anodizing additives still don’t address or solve many of the hardcoat anodizing or sulfuric anodizing processing issues. Performance and Product Advantages The AA-200 chemical additive is a combination of organic monomers specially formulated to prevent the anodized metal from burning during the primary stage of the aluminum anodizing process. As a result of decreasing the tendency for burning, a harder more uniform and better quality oxide is formed on the anodized metal part. Burning becomes magnified during a hardcoat anodizing process or when trying to finish difficult to aluminum anodize alloys such as 2024. Although the AA-200 outperforms all other conventional chemical additives by decreasing burning tendencies, it is still very important that the metal finishing job shop provides a optimal aluminum anodizing environment. Some other items that need to be addressed and that may contribute to localized heating and burning include:
In addition to reducing the burning tendencies of an aluminum anodizing or hardcoat anodizing process, the AA-200 chemical additive provides many other benefits to the metal finisher. Observed major benefits of METALAST AA-200:
Applications and Installation The METALAST AA-200 is used in the primary aluminum anodizing processing tank including hardcoat anodizing and sulfuric anodizing environments. Although it is recommend hardcoat anodizing is performed at 32˚f (+/- 2˚) and sulfuric anodizing performed at 70˚f (+/- 2˚), AA-200 can be used in a wide aluminum anodizing temperature range. Installation of the chemical additive requires much lower concentration, 0.4% to 0.8% or 4 gallons to 8 gallons per 1,000 gallon bath. Other commercially available chemical additives can require substantially higher concentrations in the range of 2% to 4% or 20 gallons to 40 gallons per 1,000 gallon bath. Once in operation, all chemical additives will require periodic replacement from chemical breakdown, incorporation into the oxide, evaporation and drag-out. METALAST AA-200 maintenance due to consumption from all sources is very low and cost effective. Installation and use of the AA-200 specialty chemical is supported by the technical and research staff of the METALAST Tech Center, the worlds only dedicated metal finishing R&D facility. Use requires periodic sampling and analysis by METALAST Staff at no charge (customer pays for sample containers and shipping). Testing Documented METALAST Technical Summaries (TECHSpecs) fully support all the benefits of the METALAST AA-200 specialty chemical additive. Although the data was compiled while using the METALAST JobPro in-conjunction with METALAST AA-200, the AA-200 chemical additive is a “stand-alone” product that has the versatility to be implemented in a variety of operating environments. The complete TECHSpecs may be requested or downloaded from the METALAST Documents Library. Tests and basis for benefits of METALAST AA-200:
Approvals This specialty chemical additive is a colorless liquid that is soluble in water, stable at room temperature and has a shelf-life of one year. None of the components used in this chemical additive are listed by OSHA, NTP, or IARC as a carcinogen. In addition, AA-200 Meets or exceeds all major aluminum anodizing specifications, including MIL-A-8625F. Additional Information Additional information on METALAST AA-200 specialty chemical additive, including the METALAST TECHSpecs, can be downloaded from the METALAST documents library. You may also contact the METALAST Technical Center, Sales Support Staff: By Phone:
By Email: Samples and Ordering
You may request a sample or purchase AA-200 exclusively through METALAST. Please contact your Regional Sales Manager or the METALAST Sales Support Staff: By Phone:
By Email:
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METALAST AA-200 is another RoHS compliant METALAST specialty chemical product. AA-200 is a proprietary aluminum anodizing, chemical additive used in conjunction with a conventional hardcoat anodizing or sulfuric anodizing metal finishing processing tank. AA-200 is a next generation “green” aluminum anodizing chemical additive aimed at providing a more efficient and superior anodized metal product to manufacturers and consumers around the world.