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.

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We remain fully operational. Our teams are working around the clock to ensure your deliveries continue safely.

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Our Other Brands:Hewyn|Selfship

Description

💧 Keep it smooth, sealed, and stress-free—your faucet’s new best friend!

PURE SAFE LUBRICATION - NSF-approved, odorless, and colorless silicone grease ensures zero chemical contamination for your drinking water system.
TRUSTED BY PROS DI YERS - Top-rated with 4.7 stars from 4,000+ users—join the community upgrading their plumbing game with confidence.
VERSATILE WATERPROOF SEALANT - Ideal for faucets, valve stems, gaskets, scuba gear, and more—protects and lubricates all your critical seals.
EXTREME TEMPERATURE STABILITY - Maintains perfect consistency from freezing -40°F to scorching 400°F—built to perform in any environment.
LONG LASTING FRICTION REDUCTION - High raw silicone content delivers smooth faucet operation and extends the life of o-rings and mechanical parts.

Keze’s Faucet O-Ring Silicone Lubricant is a premium NSF food-grade silicone grease designed for plumbing and mechanical maintenance. It resists water and oxidation, operates reliably between -40°F and 400°F, and provides long-lasting lubrication for faucets, valves, gaskets, and o-rings. Trusted by thousands with a 4.7-star rating, this odorless, colorless paste ensures safe, clean, and efficient sealing and friction reduction.

Specifications

ASIN	B0BN82MJVK
Best Sellers Rank	#165,277 in Home Improvement ( See Top 100 in Home Improvement ) #3,174 in Pipe Fittings & Accessories
Brand	Keze
Brand Name	Keze
Container Type	Tube
Customer Reviews	4.7 out of 5 stars 4,197 Reviews
Included Components	Silicone
Item Form	Paste
Item Weight	1 Ounces
Liquid Volume	1 Fluid Ounces
Manufacturer	keze
Material	Silicone
Material Type	Silicone
Package Information	Tube
Recommended Uses For Product	Mechanical
Specific Uses For Product	Plumbing, Waterproofing, Lubrication
UPC	655365167310
Unit Count	1.0 Count
Upper Temperature Range	400 Degrees Fahrenheit

Reviews

A**X

Parfait pour imprimante 3d

Elle foncitonne très bien pour mon imprimante 3d, j'ai fait une maintenance dessus et elle fonctionne beaucoup mieux et ne fait plus autant de bruit

21.06.2025

K**F

This stuff or molybdenum paste must be used in any high friction assembly!

19.03.2026

G**A

Works very well on metal and plastic

20.03.2026

A**M

Ontevreden

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

19.03.2026

J**E

Great product to fix kitchen faucets

7.07.2025

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