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Aluminate Gold Chromate Conversion Coating #DGR1016
Chemical Name:
Aluminate® Gold Conversion Coating
Chromate Conversion Coating
























Detailed Product Description:


Aluminate® Gold, a registered trademark of DGR Industrial Products, is a chemical


treatment process for aluminum used to provide corrosion protection and as a surface


preparation for paint and adhesives. Sometimes called “aluminum passivation,” it


contains hexavalent chromium and is intended to provide corrosion prevention even


when left unpainted. 





Chromate conversion is an excellent treatment method to prep aluminum prior to paint


or adhesives since it greatly enhances the ability of an organic coating to form a bond


with the aluminum substrate. Being a surface conversion treatment rather than a coating,


it will not alter the dimensions of the part.





It is frequently used on electrical and electronic equipment because it provides increased


corrosion resistance while remaining electrically conductive. 





The Aluminate® Gold process produces a microscopic thin film commonly prescribed on aluminum


to provide the following surface characteristics:


  • High-adhesion surface preparation for paint


  • Improves corrosion resistance


  • Preserves electrical conductivity of surface


  • No change in dimensions





Specification & Certifications:


Aluminate® Gold methods and properties are defined by MIL-DTL-5541-F (formerly MIL-C-5541F) now AMS-C-5541 and AMS-A-2473. 





Application Notes:


The best results are achieved on wrought alloys (machined billet aluminum alloys).


Good results can also be achieved on type 356 aluminum castings. Type 380 die


casting alloys do not alodine well, however. It should also be noted that the


chemical film is fragile immediately after processing and a 24-hour waiting time


before handling the parts is preferable.





Applications in which temperatures can reach over 120ºF can break down the corrosion resistance


of the coating. In comparison to anodizing, this chemical film is more fragile and


not generally recommended for high-use areas.





This is a visible coating that leaves the surface with a golden coloration. 





Surface Preparation:


Aluminum surfaces must be cleaned with a suitable etchant such as Aluminate® Deox A


or Aluminate® Deox B, followed by a water rinse.





Immersion Process:


To formulate bath, mix 33 parts Aluminate® Gold solution with 67 parts of water. Immersion


time is 2 to 5 minutes. Application temperature can range from ambient up to 100ºF.


Rinse part thoroughly with water and allow to dry. Surface is ready for paint. 





Brush-On Process:


Aluminate® Gold solution may be applied by brush or sponge, by using undiluted directly from


container. Assure surface remains fully wet during required contact time of 2 to 5 minutes.


Rinse part with water and surface is ready for paint. 1 quart treats about 100 sq. ft.







Comes packaged in HDPE bottles. Sizes listed below.










Click here to download Material Safety Data Sheet (MSDS)




Click here to download Henkel Alodine 1201 Technical Process Bulletin




Click here to download copy of Mil-DTL-5541F




Click here to download copy of Mil-DTL-81706
















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