How To Remove Cosmoline From Wood Stock

What Is Cosmoline?

Cosmoline is a protectant that was originally developed for the United States military in order to protect firearms from corrosion and rust. Cosmoline is a brown, waxy substance that can be applied to metal surfaces to create a protective barrier.

The main ingredients in cosmoline are mineral oil and beeswax, which work together to form a water-resistant film over the metal surface. Cosmoline can be used on firearms, tools, knives, and other metal objects. It is also effective at preventing corrosion on boat propellers and other underwater equipment.

Removing cosmoline from a wooden stock can be a quick and easy process with the right tools and techniques. Here is a guide on how to do it:

Remove cosmoline from wood stock can be a daunting task.

Follow this 7 steps  to make the process a little bit easier:

1. Make sure you have all of the necessary supplies before starting. This includes rags, mineral spirits, steel wool, and wax paper.

2. Disassemble the gun as much as possible so that you can clean every nook and cranny of the stock easily.

3. Soak a rag in mineral spirits and rub it all over the stock until it’s covered in oil/grease/cosmoline build-up. 

4. Let the mineral spirits sit on the wood for about 5 minutes to break down the cosmoline build-up (you may need to reapply more depending on how bad it is). 

5a) If your stock is unfinished or has a light finish: use steel wool soaked in mineral spirits to scrub off any remaining cosmoline build-up until the wood is smooth (be careful not to damage or remove the finish). Wipe away any excess oils with another clean rag dampened with mineral spirits.. OR

5b) If your stock has a heavy finish: use 0000-grade steel wool (or finer) dipped in denatured alcohol instead of mineral spirits so as not to damage or remove the finish; then proceed to 6

6a) Now, take some wax paper and place it over your cleaned stock surface – this will help keep everything looking nice while you’re on step 7.

6b) Or if you do not want to use wax paper for whatever reason: spread some Johnson Paste Wax evenly over the surface of the stock with a 0000-grade steel wool pad; allow time for paste wax to dry thoroughly( at least overnight ). Then go on step 7 below…

7 ) Give everything another good wipe down with Mineral Spirits using either new or clean rags – making sure there’s no residue left behind before moving onto final assembly!

How to Use Mineral Spirits or Acetone and Kerosene to Remove Cosmoline

If you’ve ever worked on a gun that’s been cosmoline-treated, you know how difficult it can be to remove the grease and oil. But never fear! There are a few methods that can help make the process a little easier.

One simple way is to use mineral spirits or acetone. Just soak a cloth in either of these solvents and wipe down the gun until all of the cosmoline is gone. Be sure to wear gloves and eye protection when doing this, as both of these chemicals can be harmful if ingested or come into contact with your skin or eyes.

Another option is kerosene. Soak a cloth in kerosene and rub it over the gun until all cosmolines come off. Again, be sure to take precautions when using this solvent, as it’s flammable and can also be harmful if ingested or contacted with skin or eyes.

Use soap and water to remove cosmoline:

1. Start using a degreaser such as mineral spirits or turpentine to break down the cosmoline. Soak a cloth in the degreaser and rub it onto the firearm until the cosmoline is dissolved.

2. Next, wash the firearm with soap and hot water. Make sure you get all of the Cosmolene off of the gun! 

3. Finally, dry off your firearm completely and apply a light coat of oil to protect it from corrosion

Use a toothbrush or a smaller paintbrush to remove the cosmoline

If you’re like me, you probably have a few firearms that you’ve acquired over the years, and they all have one thing in common: cosmoline. This oily substance is used to protect firearms from corrosion during storage, but it’s a real pain to remove when it’s time to take your gun out shooting. 

One of the good ways to remove cosmoline is with a toothbrush or small paintbrush. Just dip the brush in some solvent (such as kerosene or mineral spirits), and start scrubbing away! Be sure to get into all the nooks and crannies of the firearm, and don’t forget about the barrel. 

It might be take a little bit of elbow grease, but eventually, the cosmoline will come off. And once it’s gone, you’ll be able to enjoy your firearm without any annoying residue left behind!

Dry It Out using air or heat.

One way to dry out cosmoline is to use air or heat. You can use a vacuum cleaner and suction to remove the cosmoline.

Finish it off with Lube & Oil.

When you’re finished removing cosmoline from wood stock, your job will be much easier. You’ll need to apply a little Lube & Oil to the areas that were treated with water and soap, and then dry it off.

You can be also use a toothbrush or a smaller paintbrush to remove any excess cosmoline. After you’ve completed this step, your wood should look much better and should no longer have any impurities left on it.


What are the benefits of using a chemical to remove cosmoline from wood stock?

Cosmoline is a gun oil-like substance that is used on firearms to prevent them from rusting. It is also used on wood to prevent it from warping and cracking. Cosmoline can be a pain to remove, as it forms a thick, greasy layer that is difficult to remove by manual means.

Using a chemical to remove cosmoline from wood stock is a better option, as it is less time-consuming and eliminates the need for tedious scrubbing. Some of the most special common chemicals used for this purpose include acetone and methyl ethyl ketone.

Acetone is a volatile compound that can cause skin irritation and breathing difficulties, so be sure to use it in a properly ventilated area and avoid contact with eyes and skin. Methyl ethyl ketone is less hazardous, but it can also cause dizziness and nausea.

Can I use paint thinner to remove Cosmoline?

Yes, you can also use paint thinner to remove Cosmoline. However, be sure to use it in a safe and appropriate manner. Use paint thinner only in a well-ventilated area and avoid contact with your skin and eyes. Use a respirator if necessary. Paint thinner is a highly flammable substance and can cause serious injury if it is inhaled or ingested.

Does wd40 clean Cosmoline?

WD40 is a commonly used lubricant and cleaner and is generally safe to use on most surfaces. However, as with any product, it is always best to test it first on a small area to make sure that it will not cause any damage.
WD40 can clean Cosmoline residue from firearms but should only be used as a last resort as it can be harmful if ingested.

How do I remove cosmoline from wood stock without using chemicals?

There are several number of ways to remove cosmoline from wood stock without using chemicals. One method is to use a submerging method, where the wood is submerged in a solvent such as methylene chloride or acetone.

The solvent dissolves the cosmoline, and the wood can then be washed and dried. Another method is the boiling-water bath, where the wood is submerged in boiling water and then immediately cooled. The heat degrades the cosmoline, and the wood can then be washed and dried.

Whatever method you will choose, be sure to wear gloves, safety goggles, and a respirator when removing cosmoline from wood stock. If you are removing cosmoline from assault rifles, do not use steam cleaning or toluene for removal.

It’s important to cleaning the cosmoline off of your firearm before using it, as the grease can cause jams and other malfunctions. Removing cosmoline from wood stock without chemicals can be a challenge, but it’s definitely doable. Here are a few tips: 

  • Use a stiff brush to scrub off as much of the cosmoline as possible. Be sure to get into all the nooks and crannies.
  • Soak a cloth in mineral spirits or turpentine, then use it to wipe down the stock. This will help dissolve the remaining grease. 
  • If there are any stubborn areas that still won’t come clean, you can try using steel wool or sandpaper to scrape them off. 
  • Finally, give the stock a good coat of oil or WD-40 to protect it from future corrosion
Default image
John Harvey

I am an experienced health and fitness professional with a passion for helping others improve their physical and mental well-being.

With a background in exercise science and nutrition, I have a thorough understanding of the human body and the various factors that can impact overall health.

Articles: 55