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Henkel Alodine T 5900 RTU Conversion Coating #680-131
Henkel Alodine T 5900 RTU Conversion Coating
Chemical Name:
Alodine T 5900 RTU Conversion Coating
Chromate Conversion Coating

Detailed Product Description:

Alodine® T5900RTU, a registered trademark of Henkel Surface Technologies,

is a pre-mixed, ready-to-use chemical formulation for a treatment process for

aluminum used to provide corrosion protection and as a surface preparation for

paint and adhesives.


Often referred to as “TCP” (Trivalent Chromium Process), it differs from the

original Alodine 1201 in that it contains trivalent chromium in place of the

more common (and carcinogenic) hexavalent chromium.  It is thus considered

less hazardous and more “environmentally friendly.” 


As with other Alodine versions, it is intended to provide corrosion prevention

on aluminum alloys, even when left unpainted.  


Chemical conversion coatings provide excellent treatments to prep aluminum

prior to paint or application of adhesives since they greatly enhance the ability

of an organic coating to form a bond with the aluminum substrate.  Being a

surface conversion treatment rather than an actual coating, it will not alter the

dimensions of the part.


Specification & Certifications:

Alodine® T5900RTU methods and properties are now listed in

QPL-81706 and as such, are certified for use to achieve either

Class 1A or Class 3 coatings on aviation and mil-spec components.  


Application Notes & Surface Preparation:

Please refer to Henkel’s “Technical Process Bulletin #239582 (see link below)

for proper application and use.



Comes packed in either 1-pint or 1-quart HDPE bottle with tamper-evident seal

in heat-sealed poly bag.




Click here to download Material Safety Data Sheet (MSDS)


Click here to download Henkel AlodineT5900RTU Technical Process Bulletin


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