Danco Waterproof Faucet Grease, 0.5 oz, 1-Pack (80360)

I use this product for multiple applications including my faucets, a positemp valve, and on o-rings in my water softener. What I like is that it’s rated as “food grade” and NSF 61 certified. You can use it on plumbing that makes potable water. It doesn’t break down quickly like a lot of other products. Even after a few years on the positemp valve, my shower faucet handle turns smoothly just like when I bought my new house. You can’t beat the price at under $4. It’s a decent size too and more than adequate for multiple jobs.

Works great on the section threads of my fountain pens.

Does the job

If you are ever doing faucet cartridge replacement or O-ring replacement, always have some of this on hand. I know people use petroleum jelly, but it's not the same. This is silicone based whereas the jelly is petroleum based which can actually degrade seals and rings. Small tube of grease, but unless you're repairing faucets on a daily basis, this will last for years. Good stuff!

Does as needed.

Best waterproof grease

Made switching out shower cartridges much easier.

Excellent grease for plumbing items. I used it to grease the O rings on my kitchen faucet and they have remained in use for over a year. Use it for any parts that have threads.