Does Pancro (lens cleaner) have an expiration date?

I live in the desert and I feel may Pancro expires quickly from the extreme heat. Leaves nasty residue. When I buy it new it is always great. Anybody else have a similar experience?

Radost said:

I live in the desert and I feel may Pancro expires quickly from the extreme heat. Leaves nasty residue. When I buy it new it is always great. Anybody else have a similar experience?

Click to expand...

I recommend what I was told when I worked at Kodak, keep the unopened film in the freezer or refrigerator.

I am talking about the lens cleaner

Radost said:

I am talking about the lens cleaner

Click to expand...

Opps

Thread title updated for clarity.

Most lens cleaners have alcohol content in them, which explains evaporation. For example, from the Material Safety Data Sheet (MSDS) for one product:

• Ethanol, 2-butoxy (alcohol)
• Ethylene glycol
• Water

Pancro lens cleaner MSDS lists nothing but isopropanol

chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://secure.johnbarry.com.au/img/product/description/JBG.PANCRO%20-%20SDS.pdf

Alcohol has no expiration date.