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12-14-2010 09:14 AM
# ADS
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Re: Relic M35 rust removal, electrolysis or oxalic acid?
i guess oxalic acid will do a lot for ou on this one, i never tryd to do the electro thing as i dont know how it works but oxalic acid must be enoughf for this one as he is still in real nice condition
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Re: Relic M35 rust removal, electrolysis or oxalic acid?
Thanks for your opinion Klinger but how to use the acid? Soak it totally in a bucket or just sponge the acid on? If soak, then for how long and at what concentration/heat? Have you done this before?
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Re: Relic M35 rust removal, electrolysis or oxalic acid?
using to much soda combined with high voltage will excelerate the process.
Use as little as possible caustic soda ( add a little and see if the process is starting) use a low Voltage adapter like 9-14Volts and take your time.
To fast cleaning will destroy the surface, and the process is irreversible.
dont forget to wash the helmet afterwards with clean water.
Good luck
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Re: Relic M35 rust removal, electrolysis or oxalic acid?
i use 250 gramm oxalic acid on 5 liter wather and soak the helmet for 24 houers after that clean under warm water and then 100 gramm oxalic acid and same amount of wather for 2 more houers then clean under running wather ansd a sponge, thats all for me and works fine for me as well
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Re: Relic M35 rust removal, electrolysis or oxalic acid?
by
gerrit
using to much soda combined with high voltage will excelerate the process.
Use as little as possible caustic soda ( add a little and see if the process is starting) use a low Voltage adapter like 9-14Volts and take your time.
To fast cleaning will destroy the surface, and the process is irreversible.
dont forget to wash the helmet afterwards with clean water.
Good luck
Thank you gerrit
I was going to buy a regular car battery charger which should put out about 14.4 volts if I remember correctly. If I should use as little caustic as possible should I start the current in water with no caustic then just add the caustic slowly until I see the bubbling start? Would that be a good method?
If so then should I keep the current going for some time, maybe 6 hours then change the water and start again? I've read about people keeping items in the caustic solution for 24 hours...
Glenn
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Re: Relic M35 rust removal, electrolysis or oxalic acid?
by
Glenn66
Thanks klinger
It seems you are a big fan of the acid treatment and gerrit favors the electrolysis...
Do you think just the acid soak for 24 hours will shift even the big lumps of rust?
Glenn
yes i think it will do the trick and after the first cleaning you can see a difference and then after the second treadment you will be pleased (for me it works)
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Re: Relic M35 rust removal, electrolysis or oxalic acid?
Well i look forward to be suitably impressed by withever method I try!
For the record, some web research has recommended baking soda over caustic soda as caustic is too aggressive.
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Re: Relic M35 rust removal, electrolysis or oxalic acid?
Watch out, oxalic acid is extremly toxic and can burn your hands and sink through your skin to cause liver problem!
Thats nice helmet, after cleaning it up put some vaseline over it to stabalize the rust
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