Okay, so what is the absolute safest between the two

Flips or Cardboard holders?

I know airtites are the safest but I like to keep all my coins in a binder so....

what, from your experience is safer?

stainless

 

Log in or Sign up to hide this ad.

Cardboard are easier.

The only non-pvc holders tend to crack.

 

they do? i didn't know this.

thanks

BTW: Don't the cardboard from the holders sometime break loose and could cause damage to the coin.

 

With cardboard holders, you have to worry about the staples scratching the coin, So I would go with the Flips

 

Yeh, non-PVC flips are a bit brittle.
That's why PVC was used. It's a plastics softener.

But the non-PVC flips will be fine as long as they aren't handled much.
But remember, a coin can slide around in them.

The 2x2's aren't quite as good for coin storage, but if you use the correct size they keep the coin in place.
And as greglax45 said, watch out for the staples.
You used to be able to get the ones that seal with glue already on them, but I'd be afraid of the adhesive.

 

Yeah. I use the non-pvc flips, because I don't like staples.

 

I've seen many coins scratched from moving around in flips.
I'm all for cardboard 2x2's and Air-tites.

 

That's my concern. We have coins running around with "album friction" slide marks on 'em. I would thing flips have the same problem.

Air-tites or slabs seem like the best way to store and view coins. EAC guys keep raw coppers in inert cloth pouches, but they can't be viewed that way.

 

As usual non researched statements. PVC is not a plastic softener. It is a form of plastic called Polyvinyl Chloride. It is basically a organic compound consisting of Carbon, hydrogen and Chlorine (C4H6Cl2). Note the numbers should be lower case indicating quantity of atoms/molecule. Due to PVC being fairly rigid a additive is used called a PHTHALATE to soften this plastic. The Phthalate leaks out over a period of time causing damage to items like coins. The end result, after all leaked out, is a non dangerous, rigid plastic that cracks if used in cardboard flips.
As to the coins sliding around in any cardboard flips. That is usually due to people using oversize ones for small coins to save a few cents on the purchase of individual sizes. They buy one or two sizes and use them for all coins. I've seen dollar sized ones used for cents.
Myself, I've been using all sorts of flips for as long as they have been in existance I guess. Since I've been collecting for over 60 years, not sure when they were invented. No problems with any yet.

 

OK im confused.. you dont need staples for flips?!?! what are you guys talking about?
Link please

 

Yep. Start with lots of Vinyl Chloride (C2H3Cl) molecules, string thousands of 'em together, and you get Poly Vinyl Chloride - a reaction known as "polymerization".

PVC (aka vinyl) comes in a lot of flavors, depending on how many VCs you strung together and whether or not you did it to produce a long chain or crosslinked (connected) chains. PVC pipe, vinyl for records, and soft plastic bags like they use in hospital IV bags... all PVC.

The additive is known as a "plasticizer", and is basically a weak solvent for PVC. There are different ones depending on what you want to do. Small amounts won't dissolve the PVC; it will soften it up, so the end result is rigid, flexible, or anywhere in between. More plasticizer = more flexible.

As Carl said, plasticizer leaks out (or evaporates). That's what makes the famous "new car smell". Organic solvents.

And here's the problem for numismatists - the leachate (organic solvent and whatever it brings with it) is nasty for coins.

So the bottom line is this - the reason flips are soft and flexible is plasticizer, which is bad for coins. No soft, flexible flips.

Being rigid isn't entirely good - they crack - but at least they're safe for coins, because they lack plasticizer.

 

Well, I got the idea correct (the plastic softener.)
Just got the compound wrong.

 

how do i store the coins then? i am talking about coins that cost under 5 bucks

 

from jp's corner? another question they re all foreign coins so they might not be exact sizes thats not really going to be a problem is it i am worried about friction icausing wear if the airtite is too large ?

 

Are Dansco coin albums (not folders) a good long-term storage device for coins?

 

you run the same risk of light scratches.

 

I have used and still use cardboard 2x2's and tape on two edges with no problems.

 

Sort of agree and a little disagree. The plastic flips for sure are not the best for coins due to not only what you said, but some types of gasses that get in when the coin is inserted, eventually makes the coins stick in there. However, I've been using 2x2 Cardboard flips for many, many years with no adverse effect.