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Cosmoline Question

Discussion in 'Rifle Country' started by bennadatto, Sep 6, 2008.

  1. bennadatto

    bennadatto Well-Known Member

    I'm not sure if this is the correct location for this post. I figured since so many shoot antique rifles, there may be some cosmoline knowledge here!

    I'm planning on cleaning the cosmoline off of a yugo sks, and plan to use hot water and detergent on the metal parts. After you have dissolved the cosmoline in the water, where do you dump the water? Will the cosmoline gunk up the piping if it pour it down the sink?

  2. goon

    goon Well-Known Member

    I have no idea on that one.
    But there is this stuff you'll find at car parts stores called "parts buster" that works great for removing cosmoline from metal parts. It will literally liquify the stuff.
    Might save you some work.
  3. dscottw88

    dscottw88 Well-Known Member

    Use a heat gun (aka: significant other's blow dryer) and just hold it to some of the parts, it will begin to melt off. Thats How I do it.
  4. Vaarok

    Vaarok Well-Known Member

    It's no worse than any other sort of grease.
  5. Proinsias

    Proinsias Well-Known Member

    Yeah it won't be good for your sink. It might work in the toilet but even that might not be worth the risk. With mineral spirits I normally cover it in kitty litter and leave it to sit for a week, topping off if needed. It will slowly evaporate and I eventually bag it and trash it.
  6. Winston_Smith

    Winston_Smith Well-Known Member

  7. Jeff F

    Jeff F Well-Known Member

    Don't pour it down the sink. I would let it cool and try to collect it up and throw it in the garbage.
  8. Jason_G

    Jason_G Well-Known Member

    Hot water ought to work just fine. I have never tried that method myself, but folks that have tried it all seem to like the boiling hot water method moreso than the brake/oven cleaners, etc.

    Greases aren't dissolved in water unless there is a detergent present. I know you mentioned using a detergent, but it shouldn't be necessary as long as you have some sort of vat/tank/other big container of boiling hot water to submerge the parts in. The temperature of the hot water will thin out the cosmoline so that it flows out of your gun and floats to the top, no detergent necessary. Pull out your gun parts with a pair of tongs and they ought to dry almost instantly and be free of grease. Wood stocks might take some scrubbing, etc., since they are porous.

    If you're not dissolving the grease with a detergent, don't put it down the drain.

  9. 45B@cav

    45B@cav Well-Known Member

    Elbow grease, rags, Break Free.
  10. Mr White

    Mr White Well-Known Member

    Dump it in the neighbor's yard late at night. :D
  11. Bartkowski

    Bartkowski Well-Known Member

    I use cheap wal-mart wd-40 type lubricant. It works well and only costs $3. For hard to reach places I just blast it with the wd-40 and try to get it out with a brush or q-tip.
  12. Cosmoline

    Cosmoline Well-Known Member

    My namesake is petro based so watch out using heat sources. My first rifle was a Yugo M48 I set on fire while trying to clean the gunk off in an oven. I left it too long and it started spewing out black smoke. Took a long time to clean the oven.

    For the metal parts extremely hot water is the best thing I've used. I mean near boiling. It will strip all the grease off at no cost. Then of course quickly dry and oil the parts. Detergents will work with scrubbing, but it's slower going. Getting it out of wood is the hard part. I've never had drain clog issues, but if you live back east where that's more of a problem due to ancient plumbing you can always use a plastic utility tub, secure the barrel and parts and then pour the water on them.
  13. aka108

    aka108 Well-Known Member

    Get a can of carburetor or brake cleaner fluid. Saturate all the the parts. Wipe clean and do again. The let the bolt and whatever parts you get off set in mineral spirits for a day or so. Then flush agin with the brake fluid, let dry and lightly oil.
  14. mljdeckard

    mljdeckard Well-Known Member

    +1 on the brake/carb cleaner. I wouldn't do it on any other gun, but this gun in particular kind of has nothing to lose. I recommend two cans.

    I had trouble over time getting ALL of it out of the front sight cavity and such places, but I think it's just because I was being lazy.
  15. rodregier

    rodregier Well-Known Member

    Remember to use eye protection with any aerosols. Getting solvents in your eye(s) is no fun at all.
  16. xd45gaper

    xd45gaper Well-Known Member

    +100000 i got break cleaner in my eye the other night, had to listen to the wife laugh and ask why i didnt have my saftey glasses on as a sit at the sink for 15 mins flushing my eye out.

    for the record break cleaner burns pretty bad when its in your eye;)
  17. adkpete

    adkpete Active Member

    Brake cleaner is safer than Carb cleaner, Carb cleaner is extremly flammable
  18. Vaarok

    Vaarok Well-Known Member

    Carb and brake cleaner both cost more than boiling water, stink to high heaven, require more caution than "hot water is hot" and introduce all manner of interesting chemical compounds to the environment.

    Be green, melt cosmolene with hot water.
  19. Cosmoline

    Cosmoline Well-Known Member

    That's right. You DO NOT need to use industrial solvents. It's pointless and nasty. Try the very hot water method with a big tea kettle and the metal parts on a rack. The cosmoline, once it becomes hot, will literally melt away with the water.
  20. General Geoff

    General Geoff Well-Known Member

    hot water and/or steam is definitely the best method

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