What about vacuum sealing??

sliderider

So we've all been up late at night and had to endure infommercial hell on TV, and I was wondering if anyone here has tried using a vacuum sealer for their coins and collectibles, like the man on TV says, and how well does it work?? I assume that since the vacuum bags are intended for food, that they aren't PVC.

GTOster

They work very well
Paul

Coppernicus

The bags may not contain PVC, but that doesn't mean they're inert when it comes to metals. I would need to do a LOT of homework on this before I'd store a coin this way. JMHO

Mike

kranky

This looks like a better system than the vac-sealed bags.

mrpaseo

Kranky, do you think those are worth the investment? Personally I'm thinking no, unless you have one or two coins that you want to put in there. I understand the structure and why it must be round but that makes it hard to store square things in it, also, you can never get all the air out especially since your using only a household vacume. The UV Light will be blocked and any additional contaminants would be blocked so to that aspect I guess it would be good. Truthfully I don't see this as a cost effective way to store the coins unless we have very expensive coins (Or any collectables I guess).

I know you just put the link up and didn't state your opinion so please don't take this as a rant, I just wanted to voice my opinion on the item.

Thanks,
Ray

MrSpud

I wonder if blanketing coins with nitrogen, or some other inert gas, in containers would work as well as using a vacuum. This is done for some types of pharmaceuticals that are very prone to degradation from air and is easier and cheaper than getting a container to seal perfectly with a vacuum inside of it. You basically just have a tank of nitrogen with a tube and stick the end of the tube into the top of the container and open the valve slightly for about a minute or so before putting the lid on. The nitrogen is supposedly a little bit heavier than air so it sinks into the container and displaces the air.

catfish172

I work in HVAC service. Sometimes we use Mason or pickling jars with a 1/4" flare fitting containing a schrader valve brazed in the lid to demonstrate moisture hydroscopy in various oils as an instructional aid at tech schools. This is very inexpensive and could be a viable storage system for rolled coin. Larger vessels (quart and 1/2 Gal) I'm sure would work nicely for slabs that aren't airtight and such. You could either use a standard .5 to 6 cfm Vacuum pump to pull the vacuum or fill it with nitrogen via regulator to 10 psig or so.

Snoodle

You can find cans of inert gas used for preserving wine at wine shops and/or home brewing hobby stores. This would work quite well at preventing oxidation.

kranky

I don't really know, Ray, whether they are worth it or not. Seems like a way to apply another layer of protection, but it's not cheap.