Originally Posted by wirefox
Been building for a while and have old tubes.
Sealed but opened at one point or another.
Does TIM go bad? e.g. maybe it dries out a little and maybe not work as good?
Like it get thicker and not as good.
I feel like it must but wondering thoughts of others..
I'm sure they all go bad eventually, but how long they last seems to depend on the specific paste and how it's stored. Checking the consistency appears to be a good indication of whether or not the TIM will still perform well.
FWIW my Gelid GC Extreme was like working with stiff clay after only a year, and unusable after 2 years as it won't flow out of the tube and has bad seperation, with some parts very stiff and others very loose like water. My Arctic MX-2 is at least 5 years old (2 of those years the tube wasn't sealed properly either) and seems to work as well as the first time I used it. I've also opened sealed 5 year old tubes and they work fine as well, namely CM and Sythe TIM that comes with their coolers.