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Penetrant 11 Ounce(s) Fluid catalyst

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

4.3
257
Review
 4.4 out of 5
268 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.
268 Customer Reviews

Always keep a can handy

[This review was collected as part of a promotion.] I use this product all the time. From working on vehicles or equipment, and even around the house for sticky doorknob and latches. Love it and always keep a can or 2 handy.

June 28, 2026

From influenster.com

Works great

[This review was collected as part of a promotion.] Worked better than I expected on some rusted bolts I couldn't budge. I sprayed it on, let it sit for a few minutes, and they came loose with much less effort. The smell is strong, so I recommend using it in a well-ventilated area.

June 28, 2026

From influenster.com

Powerful penetrant with smart nozzle control for precise, efficient application

[This review was collected as part of a promotion.] I recently used the PB B’laster Penetrant, and it’s easily one of the most useful products to have in the garage. It works really well for loosening stubborn nuts, bolts, and rusted parts, but what impressed me most is the design of the nozzle system. I really like the dual-nozzle setup. The longer nozzle gives me finer control and makes it much easier to reach tight or awkward spots without spraying everywhere. Then, when I need more coverage...

June 28, 2026

From influenster.com

Works great

[This review was collected as part of a promotion.] This stuff works very well and fast. As soon as I sprayed it on the rust came right off. Though I don’t have any rusted parts right now I found some rusted screws on my truck to try it with.

June 27, 2026

From influenster.com

Revolutionary penetrating action for old rusty tools!

[This review was collected as part of a promotion.] This product was provided to me from Influenster for my honest feedback. This BLASTER product is amazing for keeping rust off of products and to loosen stiff parts. One spray of the penetrant and my channel locks were moving much more freely than prior to using it. The odor is very strong, so don’t use this indoors. Very easy to use!

June 26, 2026

From influenster.com

Best penetrating oil on the market without a doubt.

[This review was collected as part of a promotion.] I’ve used PB Blaster for as long as I can remember as I grew up in a garage and my father and grandfather owned a body shop and swore by this stuff. It is without a doubt the gold standard when it comes to penetrating fluids. I have lost track of amount of times this has saved my behind when I was in a rough spot, it literally works miracles there really isn’t anything I’ve encountered that even comes close. The potential uses are for this wond...

June 25, 2026

From influenster.com

A little bit goes a long way

[This review was collected as part of a promotion.] A little bit goes a long way as it is an oily liquid consistency! I applied this to a squeaky door hinge and within a few minutes of letting it soak, no more squeaking! It’s also a good option to help loosen stubborn bolts. It does have a strong odor, so it’s best to use in a well ventilated area or keep windows open.

June 25, 2026

From influenster.com

OG + new bottle

[This review was collected as part of a promotion.] This original PB blaster is the best for breaking stuck items loose and ensuring they're still lubricated. I enjoy that the can has a tube nozzle that you can use for precise application plus a slider to control how much is dispensed.

June 25, 2026

From influenster.com

Great motivation for stubborn rusty bolts

[This review was collected as part of a promotion.] PB B’laster Penetrant is great for those stubborn bolts and screws that drive you insane and make you start looking for a larger bar or power tool to remove. It helps provide motivation to those bolts so you can continue on with your project. It helps break up rust and grime on vehicles, lawn tools, and so much more. The product includes a straw that provides the ability to pinpoint the stream for hard to reach places and helps limit the amount...

June 24, 2026

From influenster.com

My preferred penetrating oil for all things rusted.

[This review was collected as part of a promotion.] PB blaster has always been my go to penetrant for all things rusted. Living in the northeast where road salt is life in winter, anytime you have to do anything with a car if you don’t have a can of some sort of penetrating oil on hand, you’re gonna have a heck of a time breaking anything loose. I do like that this can has the spray hose attachment folded and attached to the can as I always have a habit of losing that. It will make for a less me...

June 24, 2026

From influenster.com

Great for mechanics.

[This review was collected as part of a promotion.] Odor free, no extra residue after wiping, and it definitely does the job. I recommend this product for people who are ready for a good long-lasting penetrant.

June 23, 2026

From influenster.com

Takes care of the job

[This review was collected as part of a promotion.] Aggressive penetration it uses a high capillary action formula that actively creeps into gaps, dissolving rust, surface tension, and corrosion.

June 23, 2026

From influenster.com

Liquid wrench

[This review was collected as part of a promotion.] PB blaster is my go to penetrant spray that I use. I’ve used it for over 15 years and it really helps loosen stuff up. The key is to soak it overnight if you can. It slows goes through the nut and bolt and loosens it. Highly recommend it!

June 23, 2026

From influenster.com

Highly functional

[This review was collected as part of a promotion.] The product is very easy to use it immediately loosen up the rust from bolts in my tire and value for money. Highly safe to use. It removes the residue very strongly and easy to store.

June 22, 2026

From influenster.com

Works great at breaking rust loose

[This review was collected as part of a promotion.] Fantastic stuff. Works great at loosening rust. Also works as slight lubricant. Has a perfect spray tube to pin point exactly where you want. Great product.

June 21, 2026

From influenster.com

Satisfaction guaranteed

[This review was collected as part of a promotion.] If you are doing any type of car maintenance yourself this product should live in your toolbox permanently. I had a corroded terminal that I’ve ignored longer than I should have and this came in clutch. Once I sprayed it on it fixed it in less than a minute. I pretty much watched it neutralize the acid buildup. Once I wiped it form no residue to be seen anywhere. Great product

June 19, 2026

From influenster.com

Classic product with a newer packaging.

[This review was collected as part of a promotion.] I grew up using this on locked up or seized hinges, car parts, and door frames. It always performed so well and it's probably one of the easiest cans to spot in the store, buy its unique packaging. However I found that I could use it in a lot of home projects as well. Everyone of these needed a small spritz of something to get them to stop making noise or work without getting stuck midway. It works immediately so it's fast, clean up is easy wit...

June 19, 2026

From influenster.com

Very sticky and stays on.

[This review was collected as part of a promotion.] The product is very effective. The coverage is very thick, which is useful to stay on the project. The spray, is sticky, so it stays as needed. The nozzle for the spray folds down for storage, which is good.

June 19, 2026

From influenster.com

Great Product

[This review was collected as part of a promotion.] It shocked me how easily it got rid of rust and other gunk build up. It was simple to just spray and leave for a couple minutes and then wipe it off and it penetrates through the unwanted residue.

June 18, 2026

From influenster.com

You can only get through half a can

[This review was collected as part of a promotion.] For all intents and purposes, the product worked as described. It is good at breaking up rusted components, which is what I needed it for. However, it seems the can loses pressure about halfway through use so you can never get through the entire can. After looking up previous reviews, it seems this is a common issue with this brand that happened more frequently with the addition of the prostraw. I also stress the “be patient” part after spray...

June 15, 2026

From influenster.com