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.

Faucet O-Ring Silicone Lubricant |Plumber Grease (3)

Faucet O-Ring Silicone Lubricant |Plumber Grease (3)

Product ID: 731933975

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Details

Material
Silicone
Brand
Keze
Package Information
Tube
Liquid Volume
1 Fluid Ounces
Item Weight
1 Ounces

💧Water & oxidation resistant

🌡️Temp range -40° to 400°F

🛠️Food-grade NSF silicone grease

Description

🛠️ Keep your faucets flowing and your gear glowing—lubricate like a pro!

PURE SAFE FORMULA - NSF-approved, odorless, colorless, and food-grade silicone grease ensures zero chemical contamination—perfect for plumbing and drinking water systems.
VERSATILE MULTI USE POWER - From faucets to scuba gear, door hinges to flashlight O-rings, this lubricant waterproofs and protects a wide range of mechanical parts effortlessly.
LONG LASTING FRICTION REDUCTION - High raw silicone content delivers superior lubrication that keeps faucets turning smoothly and parts moving without wear.
UNMATCHED TEMPERATURE RESILIENCE - Keeps its smooth consistency from freezing cold to scorching heat (-40° to 400°F) for reliable performance in any environment.
WATERPROOF OXIDATION RESISTANT - Designed to resist water and oxidation, this plumber’s grease guarantees durable protection and maintenance for your essential fixtures.

Keze’s Faucet O-Ring Silicone Lubricant is a premium, NSF-approved food-grade silicone grease designed for plumbing and mechanical use. It withstands extreme temperatures (-40° to 400°F), resists water and oxidation, and provides long-lasting lubrication for faucets, valves, O-rings, and more. Safe, odorless, and colorless, it ensures no contamination of drinking water while delivering versatile, durable performance across multiple applications.

Specifications

Material	Silicone
Brand	Keze
Package Information	Tube
Liquid Volume	1 Fluid Ounces
Item Weight	1 Ounces
Recommended Uses For Product	Mechanical
Upper Temperature Rating	4E+2 Degrees Fahrenheit
Specific Uses For Product	Plumbing, Waterproofing, Lubrication
Item Form	Paste
Manufacturer	keze
Net Quantity	1.0 gram
UPC	655365167310
Number of Items	3
Model number	001
Item Weight	28.3 g
Package Dimensions	13.31 x 10.31 x 3.3 cm; 28.35 g
Item model number	001

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Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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