finishing.com -- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing

HomeFAQsBooksHelpWantedAdvertiseForum
topic 11572

Corrosion prevention


 

Can a manufacturer or anyone in authority confirm whether Alodine 1200S when left dried on aluminum surfaces cause corrosion? Would appreciate a qualified answer.

Thank you.

Lee Yee Kong
- Singapore


 

I can not claim this as a qualified answer but from experience. I had some pieces 'Alodined' then blow dried. However, it turned out that there was still solution trapped in the holes. They leaked overnight, and the next day we discovered the area around the holes were either discolored or slightly corroded. Remember that the Alodine solution itself is acidic ,therefore, is corrosive to the metal.

Dado Macapagal
- Toronto, Ontario


 

Thanks Dado, Experiences are as good as anything. This means to say that Alodine should never be allowed to flow into crevices where rinsing is difficult. As would be in assembled joints like those in aircraft structures. I wonder if there are anyone else with similar experiences.

Lee Yee Kong
- Singapore


 

I'd like to add that it also depends on the amount of Alodine solution that will be left dried on the surface. If it is only brushed or wiped to impart a thin coating, then this will not be detrimental on the parts. In fact this is the way we do it for touch ups.

Dado Macapagal
- Toronto, Ontario



This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Q or A to THIS thread START a NEW THREADView This Week's HOT TOPICS

Disclaimer: It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices


©1995-2017 finishing.com     -    Privacy Policy
How Google uses data when you visit this site.