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How To stop rust

Discussion in 'Maintenance, Tinkering & Embellishment' started by Mike Moutes, Apr 16, 2019.

  1. Mike Moutes

    Mike Moutes

    3
    Apr 16, 2019
    using 1095 steel with a 600 gt hand rubbed satin finish and getting some staining and rusting on knifes. What is the best way to stop that ?
     
  2. 91bravo

    91bravo Gold Member Gold Member

    Jun 29, 2008
    Use wd40 or other oil, while you are sanding.
     
  3. marcinek

    marcinek

    Jan 9, 2007
    Mineral oil.
     
  4. Cosmodragoon

    Cosmodragoon

    224
    Jan 1, 2019
    Do not use WD-40. There is a ton of bad but persistent folklore about WD-40. WD-40 literally stands for "Water Displacement, 40th formula". It is a mixture of various hydrocarbons including some kinds of oil. This allows it to stand in for oils in various applications, but almost never as well as an actual oil or a product specifically intended for that application. It is also mildly toxic and should not come into regular contact with your skin.

    There are plenty of better, safer, and sometimes less expensive options. As you've already seen here and in the links above, a light coating of generic 100% mineral oil from the local pharmacy works pretty well. A 16oz bottle is like two bucks at Walmart and you can imagine how long that'll last. I've used it for years without incident, though the most corrosion-prone knife steels I carry have been 8Cr13Mov and D2.
     
    Danketch and Mr.Wizard like this.
  5. Alberta Ed

    Alberta Ed

    Jun 29, 1999
    Wipe it down with a rust preventive like BreakFree CLP or even plain old, non-toxic Vaseline.
     
  6. knarfeng

    knarfeng senex morosus moderator Staff Member Super Mod Moderator

    Jul 30, 2006
    A lot of the collectors in the Traditional Forum use Renaissance Wax Polish if they don't want their carbon steel blades to patina.
     
    CableGirl and Mr.Wizard like this.
  7. Cosmodragoon

    Cosmodragoon

    224
    Jan 1, 2019
    Renaissance Wax is a popular choice for protecting surfaces on traditional rifles and revolvers as well. It's handy because it works well on both wood and metal.
     
  8. Bill DeShivs

    Bill DeShivs KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Jun 6, 2000
    WD 40 contains (guess what?) MINERAL OIL!
    And it is not particularly toxic, and it works pretty well for rust prevention.
    If you are talking about rusting while sanding-WD 40 is the way to go. Using nitrile gloves will keep the WD 40 and dirt off your hands.
    Renaissance Wax is designed for items that are not going to be handled. It's designed to go on easily and to buff off easily
    Neutral paste shoe polish is cheaper and protects much better. Plain old paste wax works well, too.
     
    Eli Chaps likes this.
  9. Cosmodragoon

    Cosmodragoon

    224
    Jan 1, 2019
    Hey! I'm used to seeing you on TFL!

    WD-40 contains a whole bunch of stuff and the exact recipe is proprietary. It's about a quarter petroleum-based oil but that's not necessarily the same thing as "mineral oil" in the context used here. Some of the ingredients, such as 2-butoxyethanol, are definitely bad for your health. As you said, nitrile gloves can offer reasonable skin protection during use. However, when it comes to items that you'll be using or handling regularly and will be spending lots of time in your pocket, I'd rather not use it at all.

    https://www.wd40company.com/files/pdf/3-in-one93265487.pdf
     
  10. knarfeng

    knarfeng senex morosus moderator Staff Member Super Mod Moderator

    Jul 30, 2006
    The OP did not say what the proposed use of the knife was. Toxicity was not part of the question.
    WD-40 is not particularly toxic if not taken internally and is commonly available. It was originally formulated to prevent rust, and will perform better than mineral oil at that specific function. There are other, better alternatives, depending on the exact needs. But, WD-40 will do what the OP wants done.
     
    sharp thoughts likes this.
  11. Mike Moutes

    Mike Moutes

    3
    Apr 16, 2019
    Thanks for all the info.....one of the knifes that I want to keep clean is a comp chopper I cut meat with. Left it in the sink for a little time and it got stained???????
     
  12. Mike Moutes

    Mike Moutes

    3
    Apr 16, 2019
    I don't mind some wd40 on my fingers but I don't want to eat it.
     
  13. Mr.Wizard

    Mr.Wizard

    291
    Feb 28, 2015
    Try a cutting board wax with carnauba for knives that contact food.
     
    GABaus likes this.
  14. wade7575

    wade7575

    602
    Apr 3, 2013
    I agree with knarfeng use Renaissance Wax it's great I have some and use it n Maxmet and M4 blade's that I have and now problems at all with,if you ever want to remove it just use contact cement remover.
     
  15. Phydeaux

    Phydeaux

    Mar 4, 2006
    I use a 1095 kitchen knife. I just make sure I wash it and dry it when I'm done, takes less than minute. Fortunately, the only other person who likes to use the knife is my son and he is very good about washing and drying it after use.

    Ric
     
  16. CableGirl

    CableGirl

    198
    Aug 19, 2018
    +1 on the Renaissance Wax suggestion. As it is recommended for use on metal items that are touched often it is well suited for blades and even the handles. Other waxes like that in auto and the like can actually cause corrosion over time.
     
  17. wade7575

    wade7575

    602
    Apr 3, 2013
    I forgot to mention I like to apply 2 coat's to my blades as well don't know if it's needed I just to know the barrier is thick,I wait an hour or 2 before I do the next coat.
     
  18. Uncle Timbo

    Uncle Timbo Gold Member Gold Member

    Nov 23, 2005
    Why not go get yourself a big ol rare steak afterwards and get a head start on a patina to stop rust?
    Regarding the WD40, it's ok, but I find it too lightweight. It'll stop a squeaky door but it'll soon start squeaking again cause it's so lightweight.
    Prolly ok while you're sanding like many have said. I know @91bravo knows what he's talking about. Jonny, you still got a pic of my Infiweiler you cleaned up fir me?
     
    Last edited: Apr 22, 2019
    91bravo likes this.
  19. 91bravo

    91bravo Gold Member Gold Member

    Jun 29, 2008
    I'm sure I do somewhere! lol To be honest, if you're only sanding by hand, any old oil will do. It's just to keep the dust down and the patina from forming. I've used wd40, CLP, synthetic motor oil, bacon grease, cooking oil, etc.
     
    MarriedTheMedic and Uncle Timbo like this.

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