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Penetrant 11 Ounce(s) Fluid catalyst

Ratings & Reviews for Blaster Penetrant 11 Ounce(s) Fluid catalyst

4.3
236
Review
 4.3 out of 5
237 Reviews


81% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this penetrating oil for exceptional rust-breaking performance, consistently freeing seized bolts and frozen fasteners where competitors fail, with many reporting dramatic results within minutes and calling it their go-to lubricant. However, a significant concern undermines satisfaction: many users report spray cans losing pressure prematurely, leaving product unusable when half full, even on new cans. Some mention strong odor and flimsy spray mechanisms. Despite packaging frustrations, most customers consider the liquid itself highly effective and worth repurchasing.

Customer review summary generated by AI, including incentivized reviews.
237 Customer Reviews

Must Have In The Garage

[This review was collected as part of a promotion.] This is the best penetrating spray out. It works super well comes out in a nice stream and works in no time. Any time i have something i need to get to break free. I reach for this.

April 8, 2026

From influenster.com

Give me a break, PB B’lasted penetrate :)

[This review was collected as part of a promotion.] The PB B’laster Penetrant certainly penetrated stubborn rusted screws for safe removal. The can is designed in a bright red and easy to spot in dim environments and is super easy to use. The flip up precision applicator is perfect for tight to reach spots and if I need more, I can just flip it down and go to town :). Doesn’t leave a messy residue and is easily cleaned with soap and water.

April 8, 2026

From influenster.com

Easy to use for any condition

[This review was collected as part of a promotion.] One of my favorite products I use in the mechanic industry. Affordable product that helps breaks down rust and lubricate whatever you may need. Can use it anywhere and for a lot of things. The sprayer covers large areas and can reach far. Simple packaging that makes it easy to carry wherever you may need.

April 8, 2026

From influenster.com

Rust genie in a bottle

[This review was collected as part of a promotion.] I have been able to use this penetrant for a few stubborn bolts and it really gets the job done. The spray is easy to control and the built in straw makes it simple to dial it in and hit tight spots without making a mess. It feels solid in hand and doesn’t leak or drip like other cheaper sprays. After letting it sit for a bit, I could actually feel parts loosen up way easier than before. Compared to something like the Wd 40, this feels much str...

April 8, 2026

From influenster.com

The best penetrating oil for breaking loose stubbo

[This review was collected as part of a promotion.] Living in NY, rust is a nightmare for my Camry. I used PB B’laster on my rusted hood latch and the performance was instant. You could see it “wick” into the metal to break up oxidation. It’s incredibly easy to use and essential for older cars!

April 7, 2026

From influenster.com

Save your wrenches and your knuckles. Use PB B'las

[This review was collected as part of a promotion.] PB Blaster is a staple in the shop! There's nothing worse than spending hours trying to remove a seized bolt just to end up stripping the bolt or your socket! Spray on a decent amount of PB Bpaster and go relax for 30-45 minutes. When you return, that stubborn bolt doesn't stand a chance, and you can save your tools from unnecessary damage (and your knuckles!). I used to work on a lot of older classic cars that tended to be rusty underneath, an...

April 7, 2026

From influenster.com

Great

[This review was collected as part of a promotion.] Great spray. Adjustable nozzle spraying for comfort. Works great on loosening bolts. Sprays extremely easy you don't even need to press hard .

April 6, 2026

From influenster.com

Perfect

[This review was collected as part of a promotion.] I recently tried the Blaster PB Penetrating Catalyst, and honestly, it did exactly what I needed it to do. I had a couple of stubborn, rusted screws that wouldn't budge no matter how much force I used. After spraying this and letting it sit for a few minutes, I was finally able to loosen them without stripping anything.

April 6, 2026

From influenster.com

Good bottle o’ lube

[This review was collected as part of a promotion.] Good performance. Has a wild smell. Very effective. The sprayer is good for coverage and easy application. Overall great lube. Definitely recommend

March 16, 2026

From influenster.com

Breaks looks faster

[This review was collected as part of a promotion.] It works very well to remove screws that are very stuck and full of star. It works perfectly for any rusted or frozen part and also protects against further rust and corrision.

December 7, 2025

From influenster.com

The straw feature is not good

I think I bought the 11 oz can of PB BLAST with the straw a few months ago or in the spring. Tried using is both ways and nothing comes out even though the can is almost full. I spent money on garbage.

November 27, 2025

From blastercorp.com

Works great

[This review was collected as part of a promotion.] PB Blaster Penetrating Catalyst is one of the most effective rust-busting sprays out there. It quickly breaks down corrosion and frees up rusted nuts, bolts, and other metal parts. The formula penetrates deep and starts working fast—great for automotive, home, or industrial use. It does have a strong odor, but the performance more than makes up for it. A reliable go-to for any mechanic or DIYer dealing with stubborn metal parts

October 31, 2025

From influenster.com

Unsticks everything

[This review was collected as part of a promotion.] Man I put this s*it on everything lol. This stuff works great on anything that you need unstuck. It's only downfall is the smell, it lasts awhile and is very strong. Working indoors with it is very tricky.

October 19, 2025

From influenster.com

Nice

[This review was collected as part of a promotion.] Really easy to apply and it work amazingly!!! I applied this on my outdoor door hinges which always gets rusted!! And this apart actually works!!

October 17, 2025

From influenster.com

Reliable Penetrant

[This review was collected as part of a promotion.] PB B'laster is a standard and effective product for freeing rusted or seized hardware. It successfully broke loose several extremely corroded fasteners on a recent project, performing reliably as expected. This product is a necessary tool for difficult mechanical work.

October 16, 2025

From influenster.com

Blast with this PB B’laster Penetrant

[This review was collected as part of a promotion.] This PB B’laster Penetrant is a perfect lubricant. Just like its name it blasts into any hard to reach area. Loosened rusted bolts and door hinges making the job easy.

October 10, 2025

From influenster.com

Awesome Blaster!!

[This review was collected as part of a promotion.] Alright, let me hype up the Blaster PB Penetrating Catalyst—this stuff is a total lifesaver! Been using it for a while now, and that spray nozzle is clutch for getting into tight spots. The can feels solid, and that “since 1957” stamp just screams reliability. It blasts through rust like a champ—had a stubborn bolt that came loose after one soak, no joke! The smell’s a bit much, but a quick vent fixes that. Hands down, 5/5—this is my go-to for ...

October 8, 2025

From influenster.com

A must have for any gearhead

[This review was collected as part of a promotion.] Works great on my 54 year-old muscle car I have bolts that never have been off the car and they came off like they were new hard to reach places that new tip is incredible. A must have for any gearhead.

October 2, 2025

From influenster.com

NEW SPRAYER DOES NOT WORK

LOVE FLUID USED IT FOR YEARS NEW FLIP UP SPRAYER IS JUNK

October 1, 2025

From blastercorp.com

Powerfull rust penetrating

[This review was collected as part of a promotion.] The blaster helped me take off the nuts from my catalyzer in my truck! The blaster dissolved all rust without dissolving the nut and the description say compatible with the auto shop,make a lot things for a cheaper price.

October 1, 2025

From influenster.com