Pitting Corrosion in the headspace of a 2-piece tinplate can.

[elias36]

Anyone familiar with interior coating blisters forming in the head space of a sanitary metal cans. the blisters were accompanied with an underfilm pitting corrsion around the headspace areas?

Thanks for any help.
Elias
Petratek, Inc.

 

[phoward]

There is a recent and ongoing series of articles addressing your type of problem in the Magazine Spray Technology and Marketing. You can find them at

http://www.spraytechnology.com.

The author explains these types of problems very well and he takes email requests for information. There are so many variables to evaluate, it cannot be fully addressed in this forum quickly: materials of container, method(s) of manufaturering, contents' compatibility, lining types and methods, sequence of processing and chemicals used, sequence of filling, vapor water content, etc.