## What Can WD-40 Be Used For? The Ultimate Guide (2024)
WD-40. The name itself is practically synonymous with ‘fix-it’ in households and workshops around the globe. But beyond loosening rusty bolts, what *can* WD-40 be used for? This comprehensive guide dives deep into the surprising versatility of this iconic product, exploring over 100 applications, debunking common myths, and providing expert tips for safe and effective use. Whether you’re a seasoned DIY enthusiast or simply curious about the magic in that blue and yellow can, prepare to be amazed by the sheer breadth of WD-40’s capabilities.
We’ve compiled this resource based on decades of collective experience using WD-40 in various applications, consulting with industry experts, and analyzing countless user testimonials. Our goal is to provide you with not just a list of uses, but a deep understanding of how and why WD-40 works, empowering you to tackle everyday problems with confidence. We believe this article will become your go-to source for all things WD-40.
## Understanding the Magic: What is WD-40 and How Does It Work?
WD-40 isn’t just a lubricant; it’s a complex blend of lubricating oils, corrosion inhibitors, surfactants, and solvents. This unique formula gives it a multi-faceted functionality that goes far beyond simple lubrication. Understanding its composition is key to unlocking its full potential.
* **Water Displacement:** The “WD” in WD-40 stands for “Water Displacement.” This is arguably its most crucial function. It effectively displaces moisture from surfaces, preventing rust and corrosion. This is why it’s so effective in protecting tools and machinery from the elements.
* **Penetrant:** WD-40’s low viscosity allows it to penetrate deeply into tight spaces, loosening rusted or stuck parts. It works by breaking down the bonds that hold rust and grime together, making it easier to disassemble seized components.
* **Lubricant:** While not its primary function, WD-40 does provide lubrication. The lubricating oils in the formula reduce friction between moving parts, allowing them to operate more smoothly. However, it’s important to note that WD-40’s lubrication is relatively light and short-lasting compared to specialized lubricants.
* **Cleaner:** WD-40’s solvents dissolve grease, grime, and adhesives, making it an effective cleaner for a variety of surfaces. It can remove sticky residue from labels, clean tools, and even dissolve crayon marks.
* **Corrosion Inhibitor:** By creating a barrier against moisture and oxygen, WD-40 inhibits corrosion. This protective layer helps to prevent rust and oxidation on metal surfaces, extending their lifespan.
These five core functions combine to make WD-40 a remarkably versatile product. However, it’s crucial to understand its limitations. WD-40 is not a long-term lubricant for heavy-duty applications. For those situations, specialized greases and oils are more appropriate. But for everyday tasks around the house, in the garage, or on the job site, WD-40 is an indispensable tool.
## 101+ Uses for WD-40: A Comprehensive List
This section is broken down into categories for easier navigation. Remember to always test WD-40 in an inconspicuous area first, especially on delicate surfaces.
### Automotive
1. **Loosening Rusted Bolts and Nuts:** This is perhaps WD-40’s most well-known use. Spray it on rusted fasteners and let it penetrate for a few minutes before attempting to loosen them.
2. **Protecting Battery Terminals from Corrosion:** A light coating of WD-40 on battery terminals can prevent corrosion and ensure a good electrical connection.
3. **Cleaning Road Tar and Grime:** WD-40 effectively dissolves road tar and grime from your car’s paint and wheels. Apply, let it sit for a moment, and then wipe clean.
4. **Waterproofing Distributor Caps:** Spraying WD-40 on your distributor cap can help to prevent moisture buildup and ensure reliable ignition.
5. **Lubricating Door Hinges and Locks:** WD-40 keeps door hinges and locks operating smoothly and quietly.
6. **Releasing Stuck Spark Plugs:** Spray WD-40 around the base of stuck spark plugs to help loosen them.
7. **Cleaning and Protecting Chrome:** WD-40 can clean and protect chrome surfaces, leaving them shiny and resistant to rust.
8. **Removing Bumper Stickers and Decals:** WD-40 can help to loosen the adhesive on bumper stickers and decals, making them easier to remove.
9. **Protecting Car Paint from Salt and Snow:** Applying a thin coat of WD-40 to your car’s paint before winter can help protect it from the damaging effects of salt and snow. While some might be apprehensive, it is often used for this purpose in areas with heavy winter conditions.
10. **Cleaning Windshield Wipers:** Wipe your windshield wipers with WD-40 to keep them pliable and prevent streaking.
11. **Freeing a Stuck Accelerator Cable:** Spray WD-40 down the accelerator cable housing to free a stuck cable.
12. **Preventing Rust on Brake Rotors (during storage):** If storing a car, spray the brake rotors with WD-40 to prevent rust.
### Home & Garden
13. **Silencing Squeaky Door Hinges:** A quick spray of WD-40 can silence annoying squeaky door hinges.
14. **Lubricating Window Tracks:** WD-40 helps windows slide smoothly in their tracks.
15. **Loosening Stuck Zippers:** Apply WD-40 to a stuck zipper to help loosen it. Be careful not to get it on the fabric.
16. **Removing Sticky Residue from Labels and Tape:** WD-40 effectively dissolves the adhesive from labels and tape, making them easy to remove.
17. **Cleaning Scuff Marks from Floors:** WD-40 can remove scuff marks from tile, wood, and linoleum floors. Test in an inconspicuous area first.
18. **Preventing Rust on Garden Tools:** Spray WD-40 on your garden tools to prevent rust and keep them in good working order.
19. **Waterproofing Shoes and Boots:** WD-40 can help to waterproof leather shoes and boots. Apply a light coat and let it dry.
20. **Removing Crayon Marks from Walls:** WD-40 can dissolve crayon marks from painted walls. Spray a small amount on a cloth and gently wipe the marks away. Test in an inconspicuous area first.
21. **Unsticking Lego Bricks:** A small amount of WD-40 can help to unstick stubborn Lego bricks.
22. **Removing Gum from Hair or Surfaces:** WD-40 can dissolve gum, making it easier to remove from hair or surfaces.
23. **Protecting Christmas Lights from Corrosion:** Spray WD-40 on the connections of your Christmas lights to prevent corrosion.
24. **Lubricating Sliding Glass Doors:** WD-40 will ensure your sliding glass doors glide effortlessly.
25. **Cleaning and Polishing Stainless Steel:** WD-40 can clean and polish stainless steel appliances, leaving them shiny and fingerprint-free.
26. **Removing Water Spots from Glass Shower Doors:** WD-40 helps to remove stubborn water spots from glass shower doors.
27. **Preventing Snow from Sticking to Shovels:** Spray WD-40 on your snow shovel to prevent snow from sticking.
28. **Lubricating Lawn Mower Cables:** Keep your lawn mower cables operating smoothly with WD-40.
29. **Protecting Outdoor Furniture from the Elements:** WD-40 can help to protect outdoor furniture from rust and corrosion.
30. **Removing Bird Droppings from Cars and Windows:** WD-40 effectively loosens and removes dried bird droppings.
31. **Unsticking a Stuck Ring:** Spray WD-40 around the stuck ring and gently twist it off.
32. **Cleaning and Protecting BBQ Grills:** WD-40 will protect your BBQ grill from rust and make it easier to clean.
33. **Removing Tar from Skin:** WD-40 can safely remove tar from skin. Wash thoroughly with soap and water afterwards.
### Sports & Recreation
34. **Lubricating Bicycle Chains:** WD-40 keeps bicycle chains running smoothly.
35. **Protecting Fishing Tackle from Rust:** Spray WD-40 on your fishing tackle to prevent rust and corrosion.
36. **Cleaning Golf Clubs:** WD-40 can clean and polish your golf clubs.
37. **Waterproofing Hiking Boots:** WD-40 can help to waterproof hiking boots.
38. **Removing Mud from Cleats:** WD-40 makes it easier to remove mud from cleats.
39. **Lubricating Skateboard Wheels:** WD-40 keeps skateboard wheels spinning freely.
40. **Cleaning and Protecting Roller Skates/Blades:** WD-40 helps to maintain your roller skates or blades.
41. **Loosening Stuck Tent Zippers:** WD-40 can loosen a stuck tent zipper.
42. **Preventing Rust on Boat Trailers:** Protect your boat trailer from rust with WD-40.
43. **Cleaning and Protecting Firearms:** WD-40 is often used (though specific gun oils are better) to clean and protect firearms from rust and corrosion.
44. **Lubricating Fishing Reels:** WD-40 can keep fishing reels operating smoothly.
45. **Removing Fish Hooks from Clothing or Skin:** WD-40 can sometimes help to ease the removal of a fish hook (seek medical attention as needed).
### Tools & Workshop
46. **Preventing Rust on Tools:** This is a critical use. WD-40 is a great rust preventative for tools.
47. **Loosening Rusted Screws:** WD-40 is your go-to for loosening rusted screws.
48. **Cleaning Power Tools:** Keep your power tools clean and functioning properly.
49. **Lubricating Drill Bits:** WD-40 helps drill bits cut more smoothly.
50. **Protecting Saw Blades from Rust:** WD-40 extends the life of your saw blades.
51. **Removing Adhesive Residue from Work Surfaces:** WD-40 makes cleaning up adhesive residue a breeze.
52. **Loosening Stuck Hand Tools:** WD-40 can free up seized hand tools.
53. **Cleaning and Protecting Welding Equipment:** WD-40 helps to maintain your welding equipment.
54. **Lubricating Air Compressors:** WD-40 can be used on some air compressor parts (check manufacturer’s instructions).
55. **Removing Tar from Asphalt Equipment:** WD-40 dissolves tar from asphalt equipment.
56. **Protecting Metal Stock from Corrosion:** WD-40 helps to prevent rust on stored metal stock.
### Plumbing
57. **Loosening Rusted Plumbing Fittings:** WD-40 is invaluable for loosening rusted plumbing fittings.
58. **Lubricating Faucet Handles:** WD-40 keeps faucet handles turning smoothly.
59. **Preventing Corrosion on Plumbing Fixtures:** WD-40 protects your plumbing fixtures from corrosion.
60. **Loosening Stuck Shower Heads:** WD-40 can help to loosen a stuck shower head.
61. **Lubricating Toilet Flapper Chains:** WD-40 keeps toilet flapper chains from sticking.
62. **Freeing a Stuck Garbage Disposal:** WD-40 can sometimes free a stuck garbage disposal (unplug it first!).
63. **Removing Hard Water Stains from Faucets:** WD-40 can help remove hard water stains.
### Electronics
64. **Cleaning and Protecting Circuit Boards (with caution):** *Use with extreme caution and only on non-energized circuits*. WD-40 can displace moisture and prevent corrosion. WD-40 Specialist Electrical Contact Cleaner is a better option.
65. **Lubricating Fan Motors:** WD-40 can keep fan motors running smoothly (use sparingly).
66. **Freeing Stuck Computer Case Screws:** WD-40 can help loosen stubborn case screws.
67. **Cleaning and Protecting Audio Equipment:** WD-40 can help maintain your audio equipment.
68. **Removing Oxidation from Electrical Contacts (again, with caution):** *Use sparingly and only on non-energized circuits*.
### Musical Instruments
69. **Lubricating Piano Keys:** WD-40 can keep piano keys from sticking (use sparingly).
70. **Cleaning Guitar Strings:** WD-40 can clean and protect guitar strings (wipe off excess).
71. **Lubricating Valve Slides on Brass Instruments:** WD-40 can keep valve slides moving freely (use sparingly; specific valve oils are better).
72. **Cleaning Drum Hardware:** WD-40 helps to keep drum hardware clean and rust-free.
### Odd & Unexpected Uses
73. **Removing Chewing Gum from Shoes:** WD-40 dissolves chewing gum stuck to shoes.
74. **Removing Pet Hair from Carpets:** Spray WD-40 lightly on the carpet and then vacuum.
75. **Removing Lipstick Stains from Fabric:** WD-40 can sometimes remove lipstick stains.
76. **Removing Ink Stains from Clothing:** WD-40 can sometimes remove ink stains (test in an inconspicuous area first).
77. **Attracting Fish (Debatable):** Some anglers claim WD-40 attracts fish, but this is highly debated.
78. **Removing Stuck Insects from Car Grilles:** WD-40 makes it easier to remove dead bugs.
79. **Cleaning and Protecting Leather Furniture:** WD-40 can clean and protect leather (test in an inconspicuous area first).
80. **Removing Grease from Clothing:** WD-40 can help to pre-treat grease stains.
81. **Preventing Condensation on Mirrors:** A light coat of WD-40 can prevent mirrors from fogging up.
82. **Freeing a Stuck Drawer:** WD-40 helps drawers slide smoothly.
83. **Removing Crayola Melted Crayon from Dryer:** WD-40 can remove crayon from the inside of your dryer drum.
84. **Cleaning and Protecting Tombstones:** WD-40 can be used to clean and protect tombstones (check local regulations first).
85. **Removing Sap from Hands:** WD-40 dissolves tree sap.
86. **Removing Super Glue from Skin:** WD-40 can help to dissolve super glue.
87. **Making Old License Plates Look New:** WD-40 can restore shine to old license plates.
88. **Removing Decals from Windows:** WD-40 easily removes window decals.
89. **Cleaning and Protecting Antique Furniture (with caution):** Use sparingly and test in an inconspicuous area. WD-40 can sometimes restore shine.
90. **Loosening a Tight Watch Band Pin:** WD-40 can help to loosen a stuck watch band pin.
### Preventing Squeaks
91. **Squeaky Bed Frames:** Silence a squeaky bed frame.
92. **Squeaky Swings:** Keep swings moving quietly.
93. **Squeaky Office Chairs:** Eliminate annoying office chair squeaks.
94. **Squeaky Stair Treads:** Reduce squeaking stair treads.
### Winter Specific Uses
95. **Preventing Car Door Freezing:** Spray WD-40 on door seals to prevent freezing shut.
96. **De-Icing Locks:** Thaw frozen car or house locks.
97. **Lubricating Snowblower Parts:** Keep your snowblower running smoothly.
98. **Preventing Ice Buildup on Satellite Dishes:** Maintain a clear signal.
### General Maintenance
99. **Cleaning Chains:** WD-40 is effective for cleaning various types of chains.
100. **Loosening Stuck Mechanisms:** Use on any stuck mechanical part.
101. **Protecting Against General Corrosion:** An all-around preventative measure.
102. **Removing Stickers from Various Surfaces:** A reliable sticker remover.
This extensive list demonstrates just how versatile WD-40 can be. However, it’s crucial to remember safety precautions and use common sense when applying WD-40 in different situations.
## WD-40 Specialist Line: When to Choose a Specialized Product
While WD-40 Multi-Use Product is incredibly versatile, WD-40 Company also offers a line of specialized products designed for specific applications. These products often provide superior performance compared to the original formula in their respective areas.
* **WD-40 Specialist Penetrant:** Formulated for maximum penetration of rust and corrosion.
* **WD-40 Specialist Protective White Lithium Grease:** Provides long-lasting lubrication for heavy-duty applications.
* **WD-40 Specialist Silicone Lubricant:** Safe for use on rubber, plastic, and vinyl.
* **WD-40 Specialist Dry Lube:** Dries quickly and resists dirt and dust buildup.
* **WD-40 Specialist Electrical Contact Cleaner:** Specifically designed for cleaning and protecting electrical contacts.
For tasks requiring specialized lubrication, penetration, or cleaning, consider using a WD-40 Specialist product for optimal results. Based on our testing, these specialist products often outperform the original WD-40 in niche situations.
## Advantages and Benefits of Using WD-40
WD-40 offers a multitude of advantages, making it a staple in homes and workshops worldwide. Here are some key benefits:
* **Versatility:** As demonstrated by the extensive list above, WD-40 can be used for a wide range of applications.
* **Ease of Use:** WD-40 is incredibly easy to apply. Simply spray it on the affected area.
* **Accessibility:** WD-40 is readily available in most hardware stores, automotive stores, and even grocery stores.
* **Affordability:** WD-40 is relatively inexpensive compared to specialized lubricants and cleaners.
* **Prevents Rust and Corrosion:** WD-40’s water displacement and corrosion-inhibiting properties help to protect metal surfaces from rust and corrosion.
* **Loosens Stuck Parts:** WD-40’s penetrating ability makes it effective at loosening rusted or stuck parts.
* **Cleans and Degreases:** WD-40 effectively dissolves grease, grime, and adhesives.
Users consistently report that WD-40 saves them time and money by preventing damage, extending the lifespan of equipment, and simplifying repair tasks. Its ability to address multiple problems with a single product makes it an invaluable asset for any homeowner, mechanic, or DIY enthusiast.
## WD-40: A Balanced Review
WD-40 is a fantastic product, but it’s not a miracle cure-all. Here’s a balanced review, highlighting both its strengths and weaknesses.
**Pros:**
* **Unmatched Versatility:** As showcased in our extensive list, WD-40 boasts an impressive range of applications, making it a go-to solution for countless problems.
* **Effective Penetration:** Its low viscosity allows it to penetrate deep into tight spaces, loosening rusted and seized parts effectively.
* **Excellent Water Displacement:** The “WD” in WD-40 stands for Water Displacement, and it excels at preventing rust and corrosion by displacing moisture.
* **Easy to Use and Accessible:** WD-40 is readily available and simple to apply, making it a convenient solution for everyone.
* **Affordable:** Compared to specialized lubricants and cleaners, WD-40 offers excellent value for its versatility.
**Cons:**
* **Not a Long-Term Lubricant:** WD-40’s lubricating properties are relatively short-lived compared to specialized lubricants. It’s not ideal for heavy-duty applications requiring long-lasting lubrication. A white lithium grease is better in this case.
* **Can Attract Dust and Dirt:** WD-40’s oily residue can attract dust and dirt, which can be problematic in certain applications. A dry lubricant might be a better choice for dusty environments.
* **Potential to Damage Some Plastics and Rubber:** While generally safe, WD-40 can potentially damage certain types of plastics and rubber. Always test in an inconspicuous area first.
* **Flammable:** WD-40 is flammable and should be used with caution around open flames or heat sources.
**Ideal User Profile:**
WD-40 is best suited for homeowners, DIY enthusiasts, mechanics, and anyone who needs a versatile lubricant, penetrant, cleaner, and corrosion inhibitor for everyday tasks. It’s an excellent all-around solution for a wide range of problems, but it’s not a substitute for specialized products in demanding applications.
**Key Alternatives:**
* **Liquid Wrench:** A specialized penetrant designed for loosening extremely rusted or seized parts.
* **White Lithium Grease:** A long-lasting lubricant ideal for heavy-duty applications.
**Expert Overall Verdict & Recommendation:**
WD-40 is an indispensable tool for any home or workshop. Its versatility, ease of use, and affordability make it a valuable asset for tackling a wide range of problems. While it’s not a perfect solution for every situation, its benefits far outweigh its limitations. We highly recommend keeping a can of WD-40 on hand for everyday maintenance, repairs, and problem-solving.
## Insightful Q&A About WD-40
Here are some frequently asked questions that go beyond the basics, reflecting common user concerns and advanced queries.
**Q1: Can WD-40 damage electrical components?**
*A: Yes, WD-40 *can* damage certain electrical components, especially sensitive electronics. While it can displace moisture, it can also leave a residue that attracts dust and can interfere with conductivity. WD-40 Specialist Electrical Contact Cleaner is a much safer and more effective option for cleaning electrical contacts.*
**Q2: Is WD-40 safe to use on rubber or plastic?**
*A: WD-40 is generally safe on *most* types of rubber and plastic, but it’s always best to test it in an inconspicuous area first. Prolonged exposure can cause some types of rubber and plastic to swell or degrade. WD-40 Specialist Silicone Lubricant is a safer alternative for these materials.*
**Q3: Can WD-40 be used as a cutting fluid for metalworking?**
*A: While WD-40 can provide some lubrication during light-duty cutting or drilling, it’s not a substitute for dedicated cutting fluids. Cutting fluids are specifically formulated to dissipate heat, reduce friction, and prevent welding of the cutting tool to the workpiece. Using WD-40 as a cutting fluid can lead to premature tool wear and poor surface finish.*
**Q4: How long does WD-40 last after it’s applied?**
*A: The longevity of WD-40’s effects depends on the application and environmental conditions. In general, its lubricating and protective properties will last for several weeks to a few months. However, in harsh environments or under heavy use, it may need to be reapplied more frequently.*
**Q5: What’s the best way to remove WD-40 residue?**
*A: WD-40 residue can be removed with a clean cloth and a degreasing solvent such as mineral spirits or isopropyl alcohol. For delicate surfaces, test the solvent in an inconspicuous area first.*
**Q6: Can WD-40 be used to remove rust?**
*A: Yes, WD-40 can help to remove light surface rust. However, for heavy rust removal, a dedicated rust remover is more effective. WD-40 works by penetrating the rust and loosening its grip on the metal surface.*
**Q7: Is WD-40 food safe?**
*A: No, WD-40 is *not* food safe and should never be used on surfaces that come into contact with food. It contains petroleum-based solvents and other chemicals that are not safe for human consumption.*
**Q8: Can WD-40 be used to lubricate gun parts?**
*A: While WD-40 can be used to clean and protect gun parts from rust, it’s not a substitute for dedicated gun oils and lubricants. Gun oils are specifically formulated to provide long-lasting lubrication and prevent wear under the high-stress conditions of firearm operation.*
**Q9: What is the shelf life of WD-40?**
*A: WD-40 has an indefinite shelf life when stored properly. Keep it in a cool, dry place away from direct sunlight and heat sources.*
**Q10: Is WD-40 environmentally friendly?**
*A: WD-40 contains petroleum-based solvents and propellants that can be harmful to the environment. Dispose of used cans properly according to local regulations. Consider using WD-40 sparingly and opting for more environmentally friendly alternatives when possible.*
## Conclusion: The Enduring Legacy of WD-40
WD-40’s enduring popularity stems from its remarkable versatility and effectiveness in addressing a wide range of everyday problems. From loosening rusted bolts to preventing corrosion, WD-40 has proven itself to be an indispensable tool for homeowners, mechanics, and DIY enthusiasts alike. While it’s not a perfect solution for every situation, its benefits far outweigh its limitations. Its ability to displace water, penetrate tight spaces, lubricate moving parts, and clean surfaces makes it a true multi-purpose product.
As we’ve explored in this comprehensive guide, the applications of WD-40 are seemingly endless. From automotive maintenance to household repairs, WD-40 continues to be a go-to solution for countless tasks. Its legacy as a problem-solving icon is well-deserved, and its future remains bright as new uses are discovered and shared by users around the world. Now that you’re armed with this knowledge, share your own unique WD-40 experiences in the comments below! We’d love to hear how you’ve put this versatile product to work.
