PAK container: how to restore the inside ?

[Dufleuve]

Hello,

The metal containers for PAK or KWK shells are quite often rusted inside.

How do you remove or stop the rust inside those containers ? For example, the PAK 40 containers are quite long and narrow.

Tips and tricks welcome.

Cheers

[fritztk]

pak

oxalic acid
will remove rust , wont damage paint if used in correct strength
look conservation forum for step by step instructions
cheers
fraser