Shelf Life of Cold blue

[hellfire_m16]

Can any one tell me the shelf life of Perma Blue Paste Gun Blue made by Birchwood casey and Hoppes Gun Blue Kit's shelf life.

[Mark]

As long as it is kept out of the sun or hot areas, and the paste has the cap screwed on so it does not dry out, they should last many more years than you! So you can relax. I have an old partial bottle of blue that I bought about 20 years ago, and out of curiosity I tried it on an old knife blade, it still worked just fine.

[hellfire_m16]

Thanks for the info Mark.
-Vinayaka

[hellfire_m16]

<[email protected]> wrote:
> Hi,
>
> As long as the bottle is still sealed with the foil it will keep for many
> years. I've used some that must've been ten years old with good results.
>
> Best Regards,
>
> Steven L.
> Product Specialist
> [email protected]
> US Toll-Free Phone: (800) 504-5897
> Intl. Calls. (847) 513-6201
> Fax: (847) 919-3003
> http://www.OpticsPlanet.com

-I had sent out an email to the chaps at Hoppe's regarding the shelf life of cold blue and this was the reply i received-thought it would be informative hence posting.