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/diy/ - Do It Yourself


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File: 37 KB, 448x336, Rust.jpg [View same] [iqdb] [saucenao] [google]
146898 No.146898 [Reply] [Original]

Anyone good ways out there to remove rust? Looked up some ways on google and found Vinegar and Molasses/water but I'm sure some of you here have some better ways of removing this crap.

>> No.146900

vinegar+water solution, let the metal sit in it for a week or so, then wipe it off with a cloth.

Emery cloth and patience works just as well.

>> No.146901

Water + Molasses will work. Mix 3 parts molasses to 5 parts water all the way up to 8 parts water, 2 parts molasses. After a couple days it will be bubbling foam like crazy.

You can also use electrolysis.

>> No.146921

>>146900
How much vinegar should I be using?

>> No.146922

>>146921
Don't use that. It doesn't work very well. Water and molasses will make it bright and shiny after you rinse off the black stuff.

>> No.146951

there is a DIY video out there somewhere for using a 12V battery to remove rust from parts. seem to be extremely effective. essentially, it's like electroplating, but in reverse. I'll have to dig up the video I saved to try it.

>> No.146954

>>146898
I use this product, works reasonably well.

" http://www.evaporust.com/ "

>> No.146955

Muriatic acid (really hydrochloric acid but they don't know what you're talking about at the store if you call it that)

It's pretty cheap and it's what they use to prep steel for galvanization. It will probably do a more thorough job than anything else you could use. It will usually be in the garden center or otherwise outside at your hardware store. Wear eye protection and gloves when you use it.

http://www.lowes.com/SearchCatalogDisplay?Ntt=muriatic+acid&storeId=10151&N=0&langId=-1&
amp;catalogId=10051&rpp=24

http://www.homedepot.com/webapp/catalog/servlet/Search?keyword=muriatic+acid&selectedCatgry=SEAR
CH+ALL&langId=-1&storeId=10051&catalogId=10053&Ns=None&Ntpr=1&Ntpc=1

>> No.146957

Naval jelly

>> No.146963

>>146951
Electrolytic reduction will only work well for thin surface rust.
The best diy way is to dissolve the rust in a weak acid like white vinegar. the rust will dissolve and the metal won't.
But hardware stores all sell some kind of rust remover.

>> No.146972

I have seen electrolysis work on heavy rust well but that thing is fubar. You will be able to clean it but the physical parts are not going to work very well again. I worked in a shop rebuilding cast iron compressors from 1911 and newer so I have dealt with my share of rust.

>> No.147016
File: 79 KB, 1000x1000, naval_jelly.jpg [View same] [iqdb] [saucenao] [google]
147016

This shit right here. It converts the rust into a patina that retards the formation of new rust.

>> No.147032

I acquired an adjustable wrench like the one in ops pic, just not nearly as bad. In fact it looks completely fine, until you try to adjust it (which is why I got it free). The screw thing is completely locked up. I've tried WD-40, several different lubricating oils and even Strikehold and nothing budges it. I've soaked it and let it sit overnight several times but still nothing. I can't even see the freaking rust anymore, its all inside. Is there anyway to get it working again? The wrench is over 20 inches long so I don't want to just toss it.

>> No.147048
File: 38 KB, 450x400, Evapo-Rust.jpg [View same] [iqdb] [saucenao] [google]
147048

I love this stuff. I used it on a moped gas tank.

>> No.147049

>>147032
>>147032
electricity is your only hope

>> No.147058

>>147032
Grab the thumbturner with a pair of vise grips, wrench that shit back and forth until the corrosion in the threads thins out a bit, leave to soak in a bucket of motor oil.

>> No.147063

>>147032
hit it with a hammer. the wrench is "rust welded" thats how they call it around here, the wd40 or whatever you are using is not getting in the thread part since because is very tight.

If hitting it doesnt work, hit it with a hammer and a chisel trying to make the thread turn. Im not sure if im explaining myself.

>> No.147066

>>147058
another good option.

>> No.147070

>>147063
He can also try heating it. That often times helps because one part will expand faster than another and break loose.

>> No.147078

>>147070
FUCK YOU! thats good. i didnt think of that and that makes me mad. Another excellent option.

>> No.147080

>>147078
Its a common method of opening jar lids that are stuck because they were put on too tight. Just run them under hot water and the ring/lid expands and helps loosen it.

>> No.147083

naval jelly. Just don't let it touch your skin!

>> No.147084

>>147032
heating should help. Heat the adjuster then quench in wd or PB blaster. If you can't afford a bunch of PB to soak it in spraying when hot should work. If its to hot the PB will burst into flames so be careful. Once you get it freed see if you can punch the adjuster pin out then re peen it after you get it out and clean the pin and bore well.

>> No.147096

Steel wool and WD-40 come to mind...

>> No.147109

if you're into explosives save the rust. I hear it can be quite a valuable ingredient

>> No.147112

Craftman? If it is, just turn it in for a new one. I believe Stanley has same warranty.

>> No.147114

COCA COLA GETS RID OF RUST!!!!!!!

>> No.147140
File: 17 KB, 324x205, mythbusters-adam-savage-bio-2-324x205.jpg [View same] [iqdb] [saucenao] [google]
147140

>>147109

Mix Blur with Blur!!

>> No.147151

>>147114
Not any more (at least in Europe/Australia). Coke used to have phosphoric acid in it which would convert rust to ferric phosphate which is pretty inert but it's been removed from the ingredients now.

Also you don't want to conert the rust, you want to get rid of it. Use Evap-o-rust.

>> No.147152

>>147109
>save the rust for thermite
>quite valuable
derp fucking hoarder

>> No.147263

>>147112

Nah, its an old Crescent brand wrench probably from the mid 70's. Anyway, thanks for the suggestions. I'll definitely give heating it a try. I'll pop it in the oven next time I get around to cooking something and have a go at it with some WD-40 and some vice grips. Thanks.

>> No.147287

This

http://www(dot)youtube(dot)com/watch?v=R5I5WBG5HPw

>> No.147291

>>146951
see
>>147287

>> No.147301
File: 76 KB, 366x350, MAH-BOI.jpg [View same] [iqdb] [saucenao] [google]
147301

>>147152
If you're trying to make a point you should try english.
That's how us adults communicate to each other.

>> No.147303
File: 37 KB, 600x447, 79902.jpg [View same] [iqdb] [saucenao] [google]
147303

>>146898
and
>>146951
Electrolytic derusting will sort it.
I've used it for a few things including a sidecar chassis and its very effective. It will also loosen the moving parts that a lot of other processes wont do as efficiently.
All you'll need is a 12V supply and some washing soda which is very cheap.
Look it up as there are some very good tutorials out there and I don't have the time to repeat it here.

Pic Related: Typical electrolytic derusting results.

>> No.147305

>>147303
YT vid on it here
>>147287

>> No.147370

Do this OUTSIDE
Get welder
Get big ass tank of water (50 gallons at least) with electrolyte in it
Set up electrolytic system for ALL your rusted stuff (car parts for instance)
Put on safety gear (face shield, welding gloves, ear protection)
Stand the fuck back
Turn on the welder

HOLY SHIT INSTANT RUST REMOVAL

Disclaimer: this is fucking dangerous so you should do research about safety regarding welders (take note of your welder's duty cycle and what that means), electrolysis, hydrogen gas, etc. before even considering this.

>> No.147440

My father-in-law gave me some old power tools that he had left in his carport for a couple years. (dumbass) They were f'in cool old craftsman (40's - 50's era) -- solid cast iron. Got a lathe, jointer, table saw, etc. Used the electrolytic method to remove rust. It works really well. I recommend using lower voltage and more time, vs higher voltage and less time. Its less destructive to the metal. I used a car battery charger on the low setting for most of the pieces. Just remember after it comes out of the solution and you clean it, you'll have to coat with something quick or it'll re-rust quickly. Use original SCJohnson paste wax or some kind of oil.

>> No.147450
File: 116 KB, 600x402, rusty.jpg [View same] [iqdb] [saucenao] [google]
147450

Hey OP, if you are looking to get stuck parts moving again, a DIY solution would be to mix 50:50 acetone and automatic transmission fluid. You have to keep mixing it because it wants to separate, but tests have been done and its more effective than wd-40, liquid wrench, and pb-blaster. Here's the link:

http://grassrootsmotorsports.com/tech-tips/55/

>> No.147451

>>147450
>>147450
Samefag here. I've used this method to get a rusty brake calipers functioning again. It takes time but really works. Soak for several days, mixing every once and a while and adding acetone if it evaporates.