Ideas to remove/keep out air

[deerkiller9991]

So what I collect, I keep in vials/jars etc suspended in 70% alcohol. Only issue I have been having is air.

The vials I have are corked and air seems to get in slowly with the cork. I am trying to decide if I should hunt down rubber plugs for them or if it would be easier to "seal" the corks (I like how they look). Thought about making plugs out of hot glue, with some type of mold. If anyone has another idea for this feel free to share

The other containers I have been using are clear plastic ones that are for beads if I remember correctly. Air seeps in through the threads right away when closing it.

I'll post a few photos in the next post.

[deerkiller9991]

[mygos]

Personnaly, I would use wax, as it is easy to use and easy to reopen ...

A+, Michel

[ornithorchid]

Try putting two small needles through the cork stopper. One needle has 1ml syringe full of the liquid you are using, while the other one has nothing attached to it.
Then close the vial. All you have to do is push the liquid in so that the air flows out through the needle that is free.
Give it a try and let me know.
Emmanuel

[ornithorchid]

My bad. Just understood your issue.
Liquid evaporate since cork is porous.
The previous user suggested waxing the cork... Just like what is done with liquors.

[jshuey]

If you look at BioQuip's products, they have vials and stoppers that are designed for exactly this. They will last a decade or two before you have to top off the alcohol. This is how major collections store "wet" material.

John