Hi all.
I have an antique cannon that had been left out in the elements for some time. The interior of the barrel has rusted and gotten pitted. I have been using penetrating oil and a stiff wire brush to clean it and I've noted that rust is still being scrubbed out after a large number of cleanings. I was wondering if there is anything that you folks might suggest that would help break up the rust mre efficiently. I don't want to use a Naval Jelly type product.
I've thought of electrolysis but space and equipment are an issue.
Any suggestions?
Thanks.
ed