Hello, could you please provide the NSF certificate for this item?

Dear, our NSF registration number is No.146038, you can check on the official website.

is this grease safe for plastic and fountain pens?

Yes. No problems in my 40+ years experience.

Can this be used on threaded connections instead of plumbers tape to prevent leaks?

This is not used to seal FPT (female pipe taper) and MPT (male pipe taper) plumbing pipe threads to prevent leaks. This is a lubricant that is primarily used on neoprene, butyl, nitrile, EPDM, etceteras, o-rings and gaskets. The lubricant assist in assembly and helps prevent bunching of the seal material as it is being tighten. It also aids in making a contact sealing surface for the o-ring and gasket. Examples where it might be use: sink/tub faucet valve stem, the o-ring on a PVC union or PVC union ball valve, etceteras. There are other pipe sealants that can be use to seal tapered threaded pipes like "Oatey White Pipe Joint Compound", "Highside Leak Lock Pipe Joint Sealant", "Permatex Thread Sealant with PTFE".

What is the percent of silicone in this product?

There is no information provided on the product packaging. All silicone greases are composed of silicone oil, PDMS, and a thickening agent, usually amorphous fumed silica, to make the oil into a grease. The exact proportions of the two may be proprietary info, so you would have to contact the mfr directly.

Keze Waterproof Water Grade Silicone Lubricant Grease For Valve Sealant

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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€ 33.83

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

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Description

🔧 Keep your faucets flowing flawlessly with Keze’s invisible silicone shield!

FOOD GRADE SAFETY ASSURANCE - NSF approved, odorless, and colorless formula ensures zero chemical contamination in drinking water.
LONG LASTING SILICONE POWER - High raw silicone content guarantees extended lubrication and friction reduction for hard-working fixtures.
VERSATILE PLUMBING ESSENTIAL - Perfect for faucets, cartridges, door hinges, shower heads, and more—your all-in-one maintenance must-have.
ULTIMATE WATERPROOF PROTECTION - Seals and lubricates faucets, valves, and O-rings with superior water and oxidation resistance.
UNMATCHED TEMPERATURE RESILIENCE - Stays stable from freezing cold to scorching heat (-40° to 400°F) for year-round reliability.

KEZE Waterproof Water Grade Silicone Lubricant Grease is a 1oz NSF-approved, food-grade silicone grease designed for plumbing applications. It offers exceptional temperature stability (-40° to 400°F), is odorless and colorless to prevent contamination, and provides waterproof, oxidation-resistant lubrication for faucets, valves, O-rings, and gaskets. Ideal for professionals and DIYers seeking durable, safe, and versatile silicone lubrication.

Specifications

ASIN	B0BN82TPY4
Brand	Keze
Brand Name	Keze
Container Type	Tube
Customer Reviews	4.7 out of 5 stars 3,075 Reviews
Item Form	Semi-Solid (Grease)
Item Weight	1 Ounces
Item weight	1 Ounces
Liquid Volume	1 Fluid Ounces
Liquid volume	1 Fluid Ounces
Manufacturer	KEZE
Material	Silicone
Model Number	001
Package information	Tube
Part Number	001
Recommended Uses For Product	Sealing, Lubricating, Faucets, Valves, Cartridges, O-rings, Gaskets, Bearings, Door hinges, Shower heads, Toilet gaskets, Flashlight o-rings
Recommended uses for product	Sealing, Lubricating, Faucets, Valves, Cartridges, O-rings, Gaskets, Bearings, Door hinges, Shower heads, Toilet gaskets, Flashlight o-rings Recommended uses for product Sealing, Lubricating, Faucets, Valves, Cartridges, O-rings, Gaskets, Bearings, Door hinges, Shower heads, Toilet gaskets, Flashlight o-rings See more
SAE J300 Viscosity Grade	15W
Specific Uses For Product	Prevent Corrosion
UPC	655365340614
Unit Count	1 Fluid Ounces
Viscosity	High
Viscosity Level	High

Reviews

A**R

Great product, performs as described!

29.03.2026

A**M

Ontevreden

Besteld op 3 maart betaald niks ontvangen niks meer gehoord Zeer ontgoocheld

19.03.2026

G**A

Works very well on metal and plastic

This worked fine on the abs pipes I was installing and cleaned up easily. But the five star rating is really because my notary seal was completely jammed shut. I thought I’d give some of this lubricant a whirl, since my next course of action was going to be to throw out the seal anyway. Within a matter of seconds, it was working again! Saved me $100.

20.03.2026

M**M

Excellent - works as described

Excellent - works as described.

7.05.2026

A**Y

Great lubricant

I used the product to put a rubber gasket on my pool filter. Worked great. AFGSKY, Buckeye, AZ

13.07.2026

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Good experience, but the tracking updates could be better.

2 months ago

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€ 33.83

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Rajesh P.

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

2 days ago