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 L106 Penetrating Oil, 5.5 Oz

Liquid Wrench L106 Penetrating Oil, 5.5 Oz

Product ID: 7076477

Details

Brand
Liquid Wrench
Item Weight
1.44 ounces
Liquid Volume
5.5 Fluid
Material
Blend
Package Information
Bottle

🔧Penetrates rust fast

🛡️Safe on surfaces

🇺🇸Made in USA

22322CFA

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Description

🔧 Unlock the power of rust-free living—because stuck is not an option!

TRUSTED LEGACY - Backed by 75+ years of family-owned innovation and trusted by pros and DIYers alike.
RUST BUSTING POWER - Penetrates and dissolves rust to free stuck nuts, bolts, and locks with ease.
COMPACT CONVENIENT - 5.5 oz bottle fits perfectly in your toolkit for on-the-go fixes and quick access.
SURFACE SAFE FORMULA - Low odor, 0% VOC, and safe on painted surfaces, plastic, and PVC—no damage, just results.
ECO COMPLIANCE FRIENDLY - 50-state compliant formula that’s tough on rust but gentle on the environment.

Liquid Wrench L106 Penetrating Oil is a powerful, low-odor rust dissolver designed to free stuck nuts, bolts, and locks quickly and safely. Proudly made in the USA with a 75-year legacy, this 5.5 oz bottle offers a 0% VOC, surface-safe formula that’s compliant across all 50 states, making it the go-to lubricant for professionals and DIY enthusiasts who demand reliable, eco-conscious performance.

Specifications

ASIN	B00200MR8Q
Best Sellers Rank	#5,138 in Automotive ( See Top 100 in Automotive ) #6 in Automotive Assembly Lubricants
Brand	Liquid Wrench
Brand Name	Liquid Wrench
Container Type	Bottle
Customer Reviews	4.5 out of 5 stars 287 Reviews
Global Trade Identification Number	00076335005232, 00078698120133
Included Components	LIQUID WRENCH PENETRATING OIL 5.5 OZ.
Item Form	Oil
Item Type Name	LIQUID WRENCH PENETRATING OIL 5.5 OZ.
Item Weight	0.34 Pounds
Liquid Volume	5.5 Fluid Ounces
Manufacturer	BBI- Blumenthal Brands Integrated (Gunk and Liquid Wrench)
Material	Blend
Model Number	L106
Number of Items	1
Package Information	Bottle
Part Number	L106
Recommended Uses For Product	Lubricant
UPC	076335005232 078698120133
Unit Count	5.5 Ounce
Warranty Description	No_warranty

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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.

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22322CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered 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 Senegal.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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Customer service was outstanding when I had questions about the product.

2 days ago

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