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 Gunk L112/6 Super Penetrant Spray - 11 oz, Gray

Liquid Wrench Gunk L112/6 Super Penetrant Spray - 11 oz, Gray

Product ID: 7076474

Details

Brand
Liquid Wrench
Item Weight
4 ounces
Liquid Volume
11 Fluid
Material
liquid
Package Information
Bottle

⏱️fast penetrating solvent

⚙️11 oz precision spray

🛡️rust & corrosion defense

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$34.86

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Description

🛠️ Break free from rust—because stuck parts are so last season!

PREMIUM LOW ODOR FORMULA - Reformulated clear solution with low viscosity for smooth, clean lubrication without the harsh smell.
TRUSTED AMERICAN MADE QUALITY - Manufactured in the USA with a solid block desiccant core to prevent moisture and flash rust.
VERSATILE MULTI USE PENETRANT - Perfect for garden hoses, clamps, pipes, and frozen mechanisms—one spray does it all.
PRECISION SPRAY STRAW INCLUDED - Target hard-to-reach spots for efficient application every time.
UNLOCK RUSTED PARTS IN MINUTES - Fast-acting formula dissolves rust and frees stuck nuts, bolts, and locks with ease.

Liquid Wrench Gunk L112/6 Super Penetrant Spray is an 11 oz aerosol lubricant designed to quickly penetrate and dissolve rust, freeing stuck nuts, bolts, and locks. Featuring a precision spray straw and a low-odor, low-viscosity formula, it’s a versatile, American-made solution trusted by professionals and DIYers alike to prevent corrosion and keep mechanisms moving smoothly.

Specifications

ASIN	B000ZZWNYG
Best Sellers Rank	#32,678 in Automotive ( See Top 100 in Automotive ) #27 in Automotive Assembly Lubricants
Brand Name	Liquid Wrench
Container Type	Bottle
Customer Reviews	4.7 4.7 out of 5 stars (1,523)
Flash Point	56 Degrees Celsius
Global Trade Identification Number	00078698120157
Included Components	aerosol can
Item Form	Aerosol,Liquid,Spray
Item Type Name	......
Item Weight	4 ounces
Liquid Volume	11 Fluid Ounces
Manufacturer	Liquid Wrench
Material	liquid
Model Number	L112
Number of Items	1
Part Number	L112
Recommended Uses For Product	Lubricant
Specific Uses For Product	Prevent Corrosion
UPC	078698120157 094715759803
Unit Count	11.0 Ounce
Viscosity	Low Viscosity
Viscosity Level	Low
Warranty Description	Customer Satisfaction

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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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$34.86

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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

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TrustScore 4.5 | 7,300+ reviews

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