Can i use liquid wrench penetrating oil on a large pvc water shut off valve? it runs to a waterfall. it has been buried for years and won't budge.

It should not hurt the pvc. If valve has been buried, I would first clear around it then clean it as best as possible. Take a hair dryer or heat gun(be very careful with heat gun) and warm, just warm valve, let cool and warm again. Apply liquid wrench let sit 10-20 mins. Use valve wrench to try and open valve, repeat id necessary. Heat done right(low) ought not cause any problems with liquid wrench which is a flammable.

After it dries, does anyone knows if it will prevent rust?

It does prevent rust. Been using liquid wrench for 40 years to prevent rust on my tools stored in my garage. After iI use a metal tool I spray it with Liquid Wrench. Never lost a tool due to rust.

Is it safe to use for breaking loose rusted stuck exhaust bolts? i know it is flammable but i figure i could clean it off after i get the bolts out.

It won a comparison between 5 other well known rust penetrators by a well know product evaluator on YouTube. But the ultimate exhaust bolt fix is heat if all else fails.

Does this form a foam when sprayed on ??? J. Payne

No, it is more like the consistency of WD-40. It bubble a little when you first spray it (probably from the propellant) but it leaves more of a thin (penetrating) oil residue.

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Liquid Wrench L112-12PK Liquid Wrench Penetrating Oil (12/11Oz)

Liquid Wrench L112-12PK Liquid Wrench Penetrating Oil (12/11Oz)

Product ID: 7101313

Details

Brand
Liquid Wrench
Item Weight
15.36 ounces
Liquid Volume
11 fluid
Material
Plastic
Package Information
Bottle

⏳long-lasting Cerflon lubrication

🌿0% VOC, low odor formula

🛠️12-pack bulk value

$264.45

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Description

🛠️ Unlock stuck parts and keep your projects moving smoothly—because downtime is not an option!

SAFE ON SURFACES - 0% VOC and low odor formula that’s gentle on painted and metal surfaces—no damage, no hassle.
TRUSTED RELIABILITY - Highly rated with 4.7 stars and a proven track record in automotive and maintenance tasks.
BULK SUPPLY FOR PROS - 12 bottles of 11oz penetrating oil—always have your go-to lubricant ready for any job.
EFFORTLESS RUST RELEASE - Loosens stuck bolts and nuts with minimal effort, saving you time on every project.
CERFLON POWERED PERFORMANCE - Advanced solid lubricant ensures smooth, long-lasting operation and reduced friction.

Liquid Wrench L112-12PK is a professional-grade penetrating oil spray designed to effortlessly loosen rusted or stuck bolts, nuts, and locks. Featuring a low-odor, 0% VOC formula with Cerflon solid lubricant, it provides long-lasting lubrication without damaging painted or metal surfaces. Sold in a convenient 12-pack of 11oz bottles, it’s the trusted choice for routine maintenance and tough repair jobs, delivering consistent, reliable performance favored by professionals and DIYers alike.

Specifications

ASIN	B00BGSF8XE
Best Sellers Rank	#54,060 in Automotive ( See Top 100 in Automotive ) #36 in Automotive Assembly Lubricants
Brand	Liquid Wrench
Brand Name	Liquid Wrench
Compatible Material	Metal
Container Type	Bottle
Customer Reviews	4.7 out of 5 stars 72 Reviews
Global Trade Identification Number	00078698408804
Item Form	Oil
Item Weight	15.36 ounces
Liquid Volume	11 fluid ounces
Manufacturer	Liquid Wrench
Material	Plastic
Model Number	L112-12PK
Number of Items	12
Number of Packs	12
Package Information	Bottle
Part Number	L112-12PK
Recommended Uses For Product	Penetrating Oil
UPC	078698408804
Unit Count	132 Ounce
Warranty Description	90 Day

Reviews

B**5

My favorite!

Never fails to help crack loose stubborn nuts, bolts, screws, spark plugs, and helps get in to lubricate tight tolerances.

20.07.2025

T**Y

Great product

This worked great as a replacement from my last penetrating oil can. It’s a lot more clean. One thing to note is it’s not for lubricating which I almost used it for.

12.05.2024

S**T

#1 penetrating oil!

This is THE BEST penetrating oil on the market today in my opinion!

14.02.2026

P**N

Good stuff!

Liquid wrench is a good alternative to WD40. and tends to be less expensive.

4.12.2023

S**K

good price

I like this best for rusty bolts etc.

5.12.2024

R**T

simple lubricant, in spray, enough to get jobs done

seems to work as well as kroil, or wd40, in spray can, large enough to get several jobs done. even give a can to a helper, with 12 cans.

11.08.2023

A**.

This is the best penetrating oil

This is the best penetrating oil I have used. I sprayed it on a sway bar bolt one night then next day went out and the bolt came right off. And I could see that the oil made is way too all the threads.

18.07.2023

W**.

Tested and proven to be the best.

I can't buy it locally so I bought a case. It's worth it.

28.10.2023

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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I loved the variety of products available. Will definitely shop again.

2 months ago

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$264.45

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

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