Citric Acid

[DomValente]

Cannot find the post on citric acid for cleaning rust.
I have obtained citric acid in powdered form but have no idea how to dilute it or what to do with it once diluted.
Any advice would be appreciated as I have been given a batch of rusty router bits which look as if they've had little use.

Dom

 

[Chris Knight]

Dom,
Alf's the expert - see her site posting here http://www.cornishworkshop.co.uk/bracecleaning.html

 

[DomValente]

Chris, thank you for finding that, I did try.
Alf you're a bloomin marvel(lette).

Dom

 

[Harbo]

Or you could try phosphoric acid - the stuff Bob Smalser used to renovate some old planes?
It is available from farmer's suppliers as "Milk Stone Remover" at about £10 for 5 litres.

Rod :lol:

 

[DomValente]

Thanks Rod, I just happen to be on a farm.

Dom

 

[andys wood shed]

Dom

How about this

Andy

 

[Philipp]

Anyone there who has experience with using tannine as de-rusting agent? Read about this some days ago but havn't had any opportunity to try it out so far.

Regards
Philipp

 

[DomValente]

Well I've gone down the Citric acid route will report back tomorrow.
Thank you for all of your suggestions

Dom

 

[DomValente]

It worked, these were quite rusty before the treatment.

Dom

 

[Paul Chapman]

They look good, Dom.

Cheers :wink:

Paul

 

[Colin C]

Hi Dom

Are you sure they are the same ones that I saw :shock: :wink:

 

[DomValente]

Yup

Dom

 

[DaveL]

Dom,

I think I would have taken the bearings off before soaking then. :-k

 

[DomValente]

Oh c**p, I'll check them in the morning.Thanks Dave.

Dom

 

[Alf]

Somewhat late to this one, Dom, and I don't want to worry you, but someone over on WoodNet raised the wonderment over whether the brazing on router cutters might be effected by the citric acid. Please do check them over carefully won't you? [-o<

Cheers, Alf

 

[Smudger]

I couldn't get to get some citric acid, so the last time I was in the wonderful Melvyn Clarke's I bought some Hammerite rust remover. It makes up to 5 litres for about £9. I put some stuff in it last night, and to be honest I was disappointed.

It took off the rust but left a black stain on chrome work, and some parts of a No 045, especially the cutter. Screws from the 04 were left pretty stained as well, but more rust/brown.

So, not bad, but not as good a I had expected.

 

[engineer one]

the black stain is the hammerite kind of oxidising the rust, i think if you buff it, it should become more grey.

certainly that is what used to happen with jenolite when i was young, and i think innocent :lol:

paul :wink:

 

[DomValente]

Somewhat late to this one, Dom, and I don't want to worry you, but someone over on WoodNet raised the wonderment over whether the brazing on router cutters might be effected by the citric acid. Please do check them over carefully won't you? [-o<

Cheers, Alf

Thanks Alf, not had a reason to use them yet, will only operate at long stick distance

Dom