SOLDERING PASTE FLUX, 50 GRAM

It is rated to last 1 year after opening, this is flux only there are no solder particles suspended in it, it is not a solder paste that can be used for re-flow soldering.

I have not bought this product; I am commenting on the expiration date issue..

Solder paste does have a shelf life, flux does not. This is due to the ingredients of solder paste, which are required to preserve the paste state. When the paste contacts air, it begins to 'nullify', just as happens when fruit is exposed to atmo.

Flux does not require any heat-temperamental materials, and is not susceptible to air exposure. Liquid flux may evaporate upon air exposure, density depending.

Is this product solder paste or solder flux?- ted
EDITORS NOTE: This is paste although the description is "Solder Paste Flux"

I should have brought my magnifier for the fine print, which I assumed would have ingredients. What type of flux is this? Is it suitable for electronics (i.e. not acid, etc.)?

I suspect there is no expiration date because flux does not expire. In my 50 years in electronics, I've never heard any such thing.

Thanks in advance. -Mike

And the expiration date is ... ? EDITORS NOTE: Both the manufacturer and us could not figure out when it expires. Which leads to the question, why is there an expiration date on solder paste?