I can across a can of Alumahyde II that I bought at least 8, probably 10 years ago.  It was still in the sealed plastic bag so I am sure I never used it.

I planned to paint a magazine to see if the paint was still good. Prepped everything per directions, but dang, nozzle is clogged!  Must have slow-leaked at some point through the years.

No worry, I have spare nozzles and cleanout nozzles.  Ran a cleanout nozzle and then threw a fresh fan pattern nozzle on and sprayed on the paint. 

Let it air-dry a bit, and then baked in the grill on lowest heat for a full day, and then let it sit in the hot garden shed for about a week.

Paint is perfect.  Hard as a rock, looks great, no complaints at all.

So if you are wondering about the shelf life of Alumahyde, I can vouch for it.

Good to know!  I wish the dozens of old cans I  have on hand performed as well.

I still have a can I purchased in 2002.  I've used it in the past year to coat a few small parts.  I had to replace the nozzle on the can, but it otherwise sprayed, applied, and cured like new.

The cleanout and replacement nozzles are the reason I still buy it.