Question Have an unopened, sealed package of Thermal Grizzly Kryonaut, wondering if it's still good to use?

[Franj0]

Good afternoon,
As the heading states, I purchased this pack of Kryonaut approximately 3 years ago, remains sealed and unopened, is it still good to open and use after 3 years?

 

[BFG-9000]

The company only warrants a shelf-life of 3 years, but unless you stored that tube in the hard vacuum of outer space for 3 years, the evaporation rate of silicone oil is so low as to be negligible. It's like peanut butter--if the components separate, just stir before using.

I should hope given the price it would be good for at least 3 years even out of the tube when applied between components.

 

[Darkbreeze]

I don't see any reason why it wouldn't be. I've used unopened Noctua NT-H1 that was four years old. Fine. I've used Arctic MX-4 and Silver that were at least four or five years old and they were fine. As long as it is still somewhat fluid, flowable, not hardened and not difficult to get out of the tube, it's fine.