Tech Support: (650) 273-2113

  Henkel Alodine 1500 Clear Chromate Conversion Coating #680-127
Henkel Alodine 1500 Clear Chromate Conversion Coating
Chemical Name:
Alodine 1500 Conversion Coating
Chromate Conversion Coating


Detailed Product Description:


Alodine® 1500 is highly concentrated and is used to make-up large immersion


baths. A gallon of Alodine® 1500 will make a 100-gallon immersion bath.





This is a clear conversion coating. As with the more common Alodine® 1001,


Alodine® 1500, is also a registered trademark of Henkel Surface Technologies


and 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. 





Like 1001, Alodine® 1500 is used when a silver-white aluminum appearance is


desired instead of the more typical gold color of the Alodine 1201 finish.





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 Alodine 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:


Alodine® 1500 methods and properties are defined by Mil-C-5541-F (Now AMS-C-5541)


and AMS-A-2473.  This product is listed on QPL-81706 as certified for Class 3.





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. 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.





Surface Preparation:


Aluminum surfaces must be cleaned with a suitable etchant such as Alumiprep 33


or Metal Prep 79, followed by a water rinse.





Immersion Process:


To formulate bath, mix 1part Alodine® 1500 concentrate with 99 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


for about 24 hours, after which, surface is ready for paint. 










Click here to download Material Safety Data Sheet (MSDS)





Click here to download Henkel Alodine 1500 Technical Process Bulletin





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





Click here to download copy of Mil-DTL-81706





Click here to download copy of QPL-81706







Comes packed in either 1-pint or 1-quart HDPE lab-quality Nalgene bottle in heat-sealed poly bag.



Choose Size:
  Related products
Magnesium Treatment Kit
Magnesium Treatment Kit
See details

Price Each: $178.95
    Henkel Alodine 1201 Chromate Conversion Coating
Henkel Alodine 1201 Chromate Conversion Coating
See details

Price Each: $34.95
Henkel Alodine 1132 Touch-N-Prep Chromate Conversion Coating
Henkel Alodine 1132 Touch-N-Prep Chromate Conversion Coating
See details

Price Each: $236.95
    Alumiprep 33 Aluminum Cleaner
Alumiprep 33 Aluminum Cleaner
See details

Price Each: $38.62
Metalprep 79
Metalprep 79
See details

Price Each: $34.98