Well, I decided (after much deliberation) to take the galv off with the vinegar method, and as you can see by the pictures, it did what we all knew it was going to do! So, so far so good! I Soaked it for 18 hours or so.
Now good sirs a further question if I may; What would be a good way of removing this lovely rust? I know that one could put it in a bag, but 15kgs of metal and sand, methinks it may be a tad heavy. :\
I thought rent a cement mixer for 24 hours and set it on slow or what not.
Also, is there a recomended sand grit I should use, 'cause currently I got some clean sand from the beach and picked out the bark and such, it's still got some shell grit in there, but if chickens can eat it, I hope it wouldn't affect metal.
T'anks again guys.
Sam.
P.S. The chemical reaction look pretty cool. And yes, I held my breath when I looked :)
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Sorry aboot the shoddy quality...
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I'm not sure how to go about doing the helmet, 'tis a work in progress...