Quote:
Originally Posted by Shaun @ Tru6
baking soda. neutralize. down the drain.
better, get a funnel, pour it back into original containers, put in garage to save for next project.
|
Baking soda and blasting soda are not the same. I used BS once on 911 CDI box and it turned out sweet. Didn't look 'restored' at all, just like new. However, the cloud I made with that stuff looked like I was burning leaves in the back yard. It clogs a vacuum in minutes and what a freakin' mess.
And, once used, it's not crystal like anymore, just pulverized powder with little to no cutting action. Way too weak for major rust.
Leesee, if the thing is rusty, that ferrous right? If it's ferrous, it's magnetic. Whatever that has to do with anything.
As I think about it, if we have to blast, I'd start with walnut shells. They won't pit the metal.
One more thing about the use of muriatic acid: It's not what the dip tanks have and unless you can control the process as in even distribution and time in the tank, you will do more harm than good. The tanks use phosphoric acid which when neutralized with a salt solution leaves a phosphate coating which will protect the newly stripped metal from re-rusting. Zinc and other metals can be added in the process furthering the protection.
This would be ideal for the table as that can be the final finish only adding some coats of tung oil or similar and heating a bit. Antique iron was often gilded, which to most means with gold foil or leaf, but silver, brass, copper and bronze are used as well.
Or were.