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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Penetrating Oil Spray (11oz, 11 ounces, Prevent Corrosion)

Product ID: 313845952

Details

Brand
Liquid Wrench
Item weight
0.25 Pounds
Liquid volume
11 Fluid
Material
liquid
Package information
Tin

📦secure, durable packaging

🛠️11oz precision spray

🛡️prevents corrosion effectively

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1586487₫

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Description

🛠️ Unlock Rust-Free Power with Every Spray!

COMPACT PORTABLE - Fits perfectly in your toolkit or garage shelf without clutter.
PRECISION 11 OZ SPRAY - Delivers just the right amount for targeted lubrication and rust penetration.
READY TO USE CONVENIENCE - No batteries or extra tools needed—spray and solve instantly.
TRUSTED BRAND RELIABILITY - Liquid Wrench’s proven formula trusted by professionals and DIYers alike.
ULTIMATE CORROSION DEFENSE - Formulated to break down rust and protect metal surfaces from future damage.

Liquid Wrench Penetrating Oil Spray (11oz) is a professional-grade lubricant designed to penetrate rust, loosen stuck parts, and prevent corrosion. Packaged securely for durability, it offers a compact, ready-to-use solution trusted by tradespeople and home mechanics to keep hardware running smoothly.

Specifications

ASIN	B000ZZWNYG
Best Sellers Rank	#72,225 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #158 in Power Tool Lubricants
Brand Name	Liquid Wrench
Container Type	Tin
Customer Reviews	4.7 4.7 out of 5 stars (1,440)
Flash Point	56 Degrees Celsius
Global Trade Identification Number	00078698120157
Item Form	Spray
Item Weight	0.25 Pounds
Liquid Volume	11 Fluid Ounces
Material	liquid
Model Number	L112
Number of Items	1
Part Number	L112
Recommended Uses For Product	packaging
SAE J300 Viscosity Grade	0W
Specific Uses For Product	Prevent Corrosion
UPC	078698120157 094715759803
Unit Count	325.31 Milliliters
Viscosity	0w

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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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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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1586487₫

Duties & taxes included

In stock

Sold byAmazon VietnamDelivered 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 Vietnam.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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