PB Blaster vs WD-40: Which Is Better?

PB-Blaster vs WD-40

When it comes to DIY projects, whether you’re a seasoned mechanic or a weekend warrior, the tools and products you use can make a world of difference. One common dilemma is choosing between PB Blaster vs WD-40. These two products, while similar, have distinct features and uses that make them more suitable for certain tasks. Understanding the differences can help you make an informed decision and get the job done right.

PB Blaster

PB Blaster is a penetrating catalyst widely recognized for its effectiveness in breaking loose rust and corrosion. Its unique capillary action allows it to seep into the smallest crevices, making it ideal for brake, exhaust, and suspension system jobs.

One of the key advantages of PB Blaster is its ability to leave a lubricating film on parts, preventing further rusting. This feature eliminates the need for additional tools like cheater bars and torches, saving both time and costly repairs.

However, it’s not all sunshine and rainbows. While PB Blaster is highly effective, it has a higher flashpoint of 152°F, which might be a concern in certain applications. Also, its strong odor can be off-putting to some users.

Key Features and Benefits of PB Blaster

  1. Penetrating power: PB Blaster is well-known for its ability to penetrate deep into tight spaces, helping to free up rusted or seized components.
  2. Rust and corrosion prevention and removal: PB Blaster excels in removing rust and preventing further corrosion from forming on metal surfaces.
  3. Lubrication: Although not primarily a lubricant, PB Blaster does offer some lubricating properties that can help reduce friction and wear.
pb blaster spray


On the other hand, WD-40 is a multi-use product that has earned a reputation for its versatility. It’s designed to drive out moisture, dry electrical systems, and prevent moisture-induced short circuits.

WD-40 is also a corrosion inhibitor, protecting against rust and other corrosive elements. It’s particularly effective in freeing sticky mechanisms and loosening rust-to-metal bonds. Plus, it’s a handy tool for removing grease, grime, gum, tar, sap, super glue, sticker residue, and other sticky substances from various surfaces.

However, while WD-40 is a jack-of-all-trades, it may not be as effective as PB Blaster in penetrating and loosening severely rusted parts. Also, its water-displacing properties, while useful in many situations, might not be needed for all tasks.

wd-40 spray

Key features and benefits of WD-40

  1. Water displacement properties: WD-40’s formula is designed to displace water, which can help protect metal surfaces from rust and corrosion.
  2. Rust and corrosion prevention and removal: WD-40 is effective at removing rust and preventing corrosion, making it a great choice for general maintenance tasks.
  3. Lubrication and cleaning: While not as specialized as PB Blaster, WD-40 can be used for lubrication and cleaning purposes, making it a versatile addition to your toolkit.
  4. Versatility: WD-40 can be used on a wide range of applications, from automotive maintenance to household repairs.

Comparison of PB Blaster Vs WD-40

When you’re elbow-deep in a DIY project, the last thing you want is to be stuck with a rusted bolt. That’s where PB Blaster and WD-40 come into play. These two products, while similar in some respects, have their unique strengths and weaknesses.

Similarities Between PB Blaster and WD-40

Both PB Blaster and WD-40 are designed to tackle rust and corrosion, making them essential tools in any DIYer’s arsenal. They’re both excellent at displacing water and preventing rust, and they can be used for a variety of tasks, from loosening squeaky hinges to freeing up rusted parts.

Differences Between PB Blaster and WD-40

While they share some similarities, PB Blaster and WD-40 are not created equal. PB Blaster is a rust-busting beast, known for its ability to break apart rusted bolts and corroded parts. It’s the go-to product when you’re dealing with parts that have been stuck together for a long time.

On the other hand, WD-40 is a jack-of-all-trades, perfect for smaller tasks like freeing up squeaks and preventing rust. However, it may not be as effective as PB Blaster when it comes to dealing with severely rusted bolts.

When to Use PB Blaster Vs Wd-40

So, when should you reach for PB Blaster, and when is WD-40 the better choice? If you’re dealing with stubborn rusted bolts and corroded parts, PB Blaster is your best bet. Its powerful rust penetrating properties will save you from the frustration of bolt-breaking situations.

On the flip side, for general maintenance and small tasks, WD-40 is your guy. It’s a versatile product that’s been trusted for a long time and can be found in almost every garage.

Remember, the key is to understand the task at hand and choose the product that best suits your needs. Whether it’s PB Blaster or WD-40, having the right tool can make your DIY project a breeze.

Here’s a table that outlines different use cases and the recommended product:

Use CaseRecommended Product
Loosening squeaky hingesWD-40
General maintenance tasksWD-40
Water displacementWD-40
Preventing rust on small toolsWD-40
Removing grease, grime, and sticky substancesWD-40
Breaking apart severely rusted boltsPB Blaster
Loosening corroded partsPB Blaster
Working on brake, exhaust, and suspension systemsPB Blaster
Dealing with parts stuck together for a long timePB Blaster
Preventing further rusting by leaving a lubricating filmPB Blaster

Please note that these are general recommendations and the effectiveness of each product may vary depending on the specific situation and condition of the parts.

Pricing and availability

Both PB Blaster and WD-40 are widely available and reasonably priced. The choice between the two often comes down to personal preference and the specific task at hand.

Environmental impact and safety

Both products should be used with caution, following safety guidelines and proper disposal procedures. While neither product is considered highly hazardous, it’s essential to use them responsibly to minimize any potential environmental impact.

Product range

Both PB Blaster and WD-40 offer a variety of products designed to cater to different needs, such as specialized formulas, applicators, and sizes. It’s worth exploring their product ranges to find the best solution for your specific requirements.

User Experiences and Reviews of PB Blaster and WD-40

When it comes to PB Blaster and WD-40, the court of public opinion has a lot to say.

PB Blaster Reviews

PB Blaster users often praise its effectiveness in breaking free rusted or frozen parts, especially in automotive repairs. B Blaster has garnered an average rating of 4.4 out of 5 stars based on 690 ratings on Amazon.One user even managed to remove a 30-year-old stuck plumbing cap without causing damage. However, it’s not all roses. Some users have reported issues with the spray mechanism, stating that the cans failed to spray properly or lost pressure prematurely. Others have complained about the strong smell of the product, which lingered for days after use.

WD-40 Reviews

On the other hand, WD-40 has received an average rating of 4.7 out of 5 stars from 8,798 global ratings on Amazon. Users have highlighted its effectiveness in various applications, such as removing surfboard wax, stopping squeaks on wood or steel, and even getting rid of spiders. However, a few users have reported issues with the product, including leaking and poor operation of the sprayer. Some customers reported that the product did not effectively loosen stuck bolts in their case.

Expert Opinions

Professionals and experts in the field often have a lot to say about PB Blaster and WD-40. Let’s take a look at some insights from a highly popular YouTube channel, Project Farm.

PB Blaster

Project Farm recognizes PB Blaster as a popular penetrating fluid, claiming to be the number one selling penetrant. It’s designed to break free rusted and frozen parts and protect against further rust and corrosion. The unique capillary action of PB Blaster allows it to attack rust from all angles. In the tests conducted by Project Farm, PB Blaster performed well, although specific details about its performance were not mentioned.


On the other hand, WD-40 is known for its versatile applications, including lubrication, rust protection, penetration, and water displacement. While it’s not primarily marketed as a penetrant, it was included in Project Farm’s test for comparison. According to the video, WD-40 delivered a respectable fourth-place performance among the tested products. The video suggests that while WD-40 may not be as effective as dedicated penetrants or the top-performing product, it still outperformed PB Blaster.

In conclusion, both PB Blaster and WD-40 have their strengths and are recommended by experts for different use cases. PB Blaster is often recommended for dealing with stubborn rusted bolts and corroded parts, while WD-40 is recommended for general maintenance tasks and small jobs.


A. Is PB Blaster good for removing rust?

Yes, PB Blaster is specifically designed to penetrate and break down rust, making it highly effective for removing rust from metal surfaces.

B. What is better PB Blaster or WD-40?

It depends on the task. PB Blaster is more effective for loosening rusted or seized components, while WD-40 is a more versatile product suitable for general lubrication, rust removal, and water displacement.

C. Can I use PB Blaster as a lubricant?

PB Blaster does offer some lubricating properties, but it’s primarily a penetrating oil. For dedicated lubrication tasks, it’s better to use a specialized lubricant.

D. Can WD-40 be used as penetrating oil?

WD-40 can be used as a light-duty penetrating oil, but it may not be as effective as a dedicated penetrating oil like PB Blaster for heavily rusted or seized components.

E. Is PB Blaster a good rust preventative?

PB Blaster does offer some rust prevention properties, but its primary purpose is to break down and remove existing rust. For long-term rust prevention, a dedicated rust preventative product may be more suitable.

F. Does WD-40 work as well as PB Blaster?

For general maintenance tasks, WD-40 is a versatile and useful product. However, for loosening heavily rusted or seized components, PB Blaster’s specialized formula may be more effective.

Wrapping Up

In summary, both PB Blaster and WD-40 have their unique strengths and applications. PB Blaster is more effective at breaking down and removing rust, while WD-40 is a versatile, multi-purpose product ideal for general maintenance tasks. Consider the specific job at hand and choose the product that best meets your needs. And, as always, follow safety guidelines when using these products to ensure the best results.

Also Check out:

If you’re looking to expand your toolset, check out our guide on the best flex-head ratcheting wrench set. For more advanced projects, consider investing in the best digital torque wrench to ensure precision and accuracy. If you ever encounter a stripped Allen screw, our tutorial on how to remove a stripped Allen screw will come in handy.

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