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.

L106 Penetrating Oil 5 5 Oz | Desertcart Japan

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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¥7854

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Unlock stuck parts fast — because waiting is so last decade!

MULTI USE MARVEL - Versatile penetrant that tackles corrosion and loosens stubborn parts effortlessly.
COMPACT POWERHOUSE - 5.5 oz aerosol bottle fits perfectly in your toolkit for on-the-go fixes.
RAPID RUST RELEASE - Break free rusted nuts and bolts in minutes, saving you time and frustration.
PRECISION VISCOSITY - 0W grade formula ensures deep penetration without excess residue.
TRUSTED PERFORMANCE - Rated 4.6 stars by over 200 pros who rely on it for consistent results.

Liquid Wrench L106 Penetrating Oil is a 5.5 oz aerosol designed to quickly loosen rusted nuts, bolts, and parts. With a 0W viscosity grade, it penetrates deeply to inhibit corrosion and free stuck components efficiently. Trusted by professionals with a 4.6-star rating, this compact, multi-use formula is an essential tool for any maintenance or repair kit.

Specifications

ASIN	B00200MR8Q
Brand	Liquid Wrench
Brand Name	Liquid Wrench
Container Type	Bottle
Customer Reviews	4.6 out of 5 stars 216 Reviews
Global Trade Identification Number	00076335005232, 00078698120133
Item Weight	0.09 Pounds
Item weight	0.09 Pounds
Liquid Volume	5.5 Fluid Ounces
Liquid volume	5.5 Fluid Ounces
Manufacturer	Liquid Wrench
Material	Blend
Model Number	L106
Number of Items	1
Package information	Bottle
Part Number	L106
Recommended Uses For Product	Corrosion Inhibitor
Recommended uses for product	Corrosion Inhibitor
SAE J300 Viscosity Grade	0W
UPC	076335005232 078698120133
Unit Count	1.0 Count
Viscosity	0w

Reviews

M**O

Great Product

Worked perfectly

23.05.2026

T**D

It does the job at least 90% of the time

Always does the job use quite a bit and give it some time.

7.12.2025

H**W

Highly recommended

Top quality. It’s liquid wrench, what else is there to say about it!

13.05.2026

D**E

Patience and a couple of light taps!

The nuts holding the passenger side cat of my 2017 Mustang GT were stuck on. Sprayed with Liquid Wrench and let sit over night. Came back the next day sprayed again and tapped the flange with hammer and they came loose with a breaker bar. This stuff really works but requires a little patience. Also once you get passed the smell you got it licked.

18.03.2026

T**Y

IT WORKS

DIID EXACTLY WHAT IT IS DESIGNED TO DO. HOWEVER, SHIPPING TOOK FOREVER!!

24.07.2024

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¥7854

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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