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01-23-2014, 10:41 AM
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#1 | | フルコンボ
Join Date: May 2004 Location: YVR
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| Non destructive rust removal?
We got some pretty bad rust on our CNC gantries that we need rust removal from. 
Similar to that, but a lot more rustier.
Anyone have any ideas on how to remove it non-destructively?
-Rich
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01-23-2014, 10:55 AM
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#2 | | 14 dolla balla aint got nothing on me!
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Electrolysis
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01-23-2014, 11:02 AM
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#3 | | I contribute to threads in the offtopic forum
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CLR?
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01-23-2014, 11:20 AM
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#4 | | フルコンボ
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| Quote:
Originally Posted by saveth  Electrolysis
Posted via RS Mobile | Know of any reputable companies in Vancouver that do this? Quote:
Originally Posted by BoostedBB6 CLR? | We've tried that and its not very effective. Its difficult to get a full soak on machine gantries. =(
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01-23-2014, 11:28 AM
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#5 | | My homepage has been set to RS
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Coke
Oxalic Acid Crystals with water
deox-C from B & H
Evaporust I've hear good stories about.
I think my dad used LPS on his machines and I think it did some decent protecting.
Electrolysis is great but CNC Gantries can be pretty big right? You're going to need a big tub lol Quote: |
Know of any reputable companies in Vancouver that do this?
| www.redi-strip.com/index.htm
I think my dad's old boss used to outsource work to them.
Couldn't tell you if they're good or not though
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01-23-2014, 01:34 PM
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#6 | | Even when im right, revscene.net is still right!
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I've read that Amsoil Metal Protector works but haven't tried it myself.
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01-23-2014, 01:49 PM
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#7 | | Need to Seek Professional Help
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Used evaporust on some cam gears and worked okay. Still had some rust, but most of it was gone. Problem is you need to submerge the whole part in it for a day or so, then scrub it off using scotch-brite pad or something.
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01-23-2014, 02:19 PM
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#8 | | フルコンボ
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| Quote:
Originally Posted by k3mps Coke
Oxalic Acid Crystals with water
deox-C from B & H
Evaporust I've hear good stories about.
I think my dad used LPS on his machines and I think it did some decent protecting.
Electrolysis is great but CNC Gantries can be pretty big right? You're going to need a big tub lol Home Page
I think my dad's old boss used to outsource work to them.
Couldn't tell you if they're good or not though | Talked to redistrip, they want us to disassemble our CNC and bring it to their shop  Quote:
Originally Posted by Speed2K I've read that Amsoil Metal Protector works but haven't tried it myself. | Yeah once we clean it off we'll probably protect it with something like this! Thanks! Quote:
Originally Posted by slow-fastback Used evaporust on some cam gears and worked okay. Still had some rust, but most of it was gone. Problem is you need to submerge the whole part in it for a day or so, then scrub it off using scotch-brite pad or something. | Ill give evaporust a try, maybe ill soak a rag and leave it on the gantry overnight or something. Or maybe build a temporary tank/trench to soak it overnight somehow.
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01-23-2014, 02:41 PM
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#9 | | I contribute to threads in the offtopic forum
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In the future, consider building a circuit with the gantry and use a more active material from the galvanic scale to act as a sacrificial anode, your gantry will never rust again.
If you're not familiar with any of this, just google "galvanic corrosion" and "sacrificial anode" you will understand, it's simple.
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01-23-2014, 11:08 PM
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#10 | | 2x Variable Nockenwellen Steuerung
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Have you figured out what caused the rust? debris or is it the gantry itself? If it is debris, sounds like you need more frequent cleaning.
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01-23-2014, 11:11 PM
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#11 | | Unofficial Tin Foil Hat Specialist.
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Biorust. You'll need to soak the gantries somehow with it.
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01-25-2014, 09:49 PM
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#12 | | Everyone wants a piece of R S...
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01-25-2014, 10:44 PM
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#13 | | Need to Seek Professional Help
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You can try using naval jelly. Pour or brush it on, takes about an hour. You can do multiple coats and it's non-toxic. I use it for cleaning up old motorbike parts. It converts the rust into a black surface.
It's about $6 for a small bottle. You can get it at most of the hardware stores and lordco.
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01-25-2014, 10:50 PM
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#14 | | MOD MOD MOD MOD MOD
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Lemon Juice and then baking soda, Mix it together until it is the consistency of tooth paste, then cake that stuff on, leave it caked on for a few hours, come back later and rub/wipe off, maybe use a vinyl brush on it. It should wipe right off.
This works for me every time 
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01-27-2014, 11:29 AM
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#15 | | I contribute to threads in the offtopic forum
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clean it with a brass brush and mild solvent then relube it
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