UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Rust removal from steel component on the cheap.

Malcolm T · 23rd Mar 2019, 4:38 pm

I can drop some of my rusty nuts in as an example later but ive ran out of vinegar so will pick up some in a few days .
At the time i was having a drop of pepsi to drink and thought about the acid content in that so slung in some pepsi as well, phosphoric acid is in coca cola probably pepsi as well .
Phosphoric acid is used in much higher concentrations in ultrasonic cleaning tanks to clean aliminum !!!. And the results are brilliant!.
I will have to have another go and get to grips with the mix ratios and the temp.
I think Acetic acid should work as well in place of the vinegar just a question of the ratio to water mix . So anyone out there whose got some photographic chemicals might have acetic acid left over !. Cant do that with digital !!!.
I was very surprised it worked as i expected a clear solution but it ended up like a cup of black tea .
Next time i will take a piccy .

23rd Mar 2019, 4:38 pm	#4
Malcolm T Hexode Join Date: Dec 2018 Location: Lugo, Spain Posts: 483	Re: Rust removal from steel component on the cheap. I can drop some of my rusty nuts in as an example later but ive ran out of vinegar so will pick up some in a few days . At the time i was having a drop of pepsi to drink and thought about the acid content in that so slung in some pepsi as well, phosphoric acid is in coca cola probably pepsi as well . Phosphoric acid is used in much higher concentrations in ultrasonic cleaning tanks to clean aliminum !!!. And the results are brilliant!. I will have to have another go and get to grips with the mix ratios and the temp. I think Acetic acid should work as well in place of the vinegar just a question of the ratio to water mix . So anyone out there whose got some photographic chemicals might have acetic acid left over !. Cant do that with digital !!!. I was very surprised it worked as i expected a clear solution but it ended up like a cup of black tea . Next time i will take a piccy .