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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L112/4-4PKLIQUID Wrench L112-4PK Penetrating Oil Spray - 11 oz., (Case of 4)

Product ID: 41824992

Details

Brand
Liquid Wrench
Item Weight
311 g
Liquid Volume
11 fluid
Material
Plastic
Package Information
Bottle

⚙️Fast-acting rust penetrator

🛡️0% VOC, low odor & safe on surfaces

🇺🇸100% Made in USA, 75+ years legacy

JD 81.25

Duties & taxes included

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Description

🔓 Break free from rust with the trusted power of Liquid Wrench!

VERSATILE FIXER 🔧 - Perfect for clamps, pipe fittings, frozen mechanisms, hinges, and nozzles—your all-in-one rust solution.
CLEAN GREEN 🛡️ - Low odor, zero VOC formula safe on painted surfaces, plastic & PVC—eco-conscious and user-friendly.
TRUSTED HERITAGE 🇺🇸 - Backed by 75+ years of family-owned innovation and proudly made in the USA.
PRO LEVEL PERFORMANCE 💪 - Top-rated by tradesmen and DIYers alike, delivering professional-grade results at a budget-friendly price.
UNLOCK RUSTED POWER ⚙️ - Penetrates deep to free stuck nuts, bolts & locks effortlessly.

Liquid Wrench L112-4PK is a fast-acting penetrating oil spray designed to dissolve rust and free stuck nuts, bolts, and locks. With a low odor, 0% VOC formula safe on multiple surfaces, it’s a versatile, eco-friendly solution made in the USA by a family-owned company with over 75 years of trusted innovation. Ideal for automotive, plumbing, and general maintenance, this 4-pack of 11 oz. bottles delivers professional-grade performance at an unbeatable value.

Specifications

ASIN	B00J5LZ5KA
Best Sellers Rank	#67,837 in Automotive ( See Top 100 in Automotive ) #42 in Automotive Assembly Lubricants
Brand Name	Liquid Wrench
Compatible Material	Metal,plastic,pvc
Container Type	Bottle
Customer Reviews	4.6 4.6 out of 5 stars (107)
Global Trade Identification Number	10078698217762
Item Form	Liquid,Oil,Spray
Item Weight	311 g
Liquid Volume	11 fluid ounces
Manufacturer	Liquid Wrench
Material	Plastic
Model Number	L112/4-4PK
Number of Items	4
Number of Packs	4
Part Number	L112/4
Recommended Uses For Product	Rusty nuts, bolts & hinges. Clamps & Pipe fittings. Locks & Latches. Frozen mechanisms. Nozzles and hose pipe fittings
Unit Count	44 Fluid Ounces
Warranty Description	2 Years

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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

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Good experience, but the tracking updates could be better.

2 months ago

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JD 81.25

Duties & taxes included

In stock

Sold byAmazon JORDANDelivered 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 JORDAN.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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