Are these any danger to causing PVC damage to coins?

PillarDollarCollector

I am planning on buying ungraded coins from time to time and sending them to PCGS or NGC for grading. I was wondering are these type of cardboard holders are any danger for coins? I believe they are made of mylar but I am no expert on plastic types.

MarkKelley

These should not harm your coins. With that being said, the TPG's require you to submit your coins in flips, not these.

pmh1nic

My understanding is the soft plastic that can cause PVC damage to coins.

FrankH

@pmh1nic said:
My understanding is the soft plastic that can cause PVC damage to coins.

Most are Mylar that is inert.

Is Mylar inert?
Archival polyester (PET) is also known by the brand names Melinex and Mylar. It is chemically inert with a high tensile strength and chemical and dimensional stability. It is extremely clear and will never yellow or become cloudy, making it ideal for encapsulation where a detailed view of the covered item is desired.

Relaxn

Staples... Flatten your staples

Mr_Spud

I prefer Saflips. These are good for submitting coins and also for storage. For special raw coins I heat seal the Saflips with an impulse sealer.
These are Saflips

This is what I seal them with

PillarDollarCollector

So any danger for PVC damage?

Mr_Spud

The cardboard 2x2s shouldn’t contain any PVC

PillarDollarCollector

@Relaxn said:
Staples... Flatten your staples

???

PillarDollarCollector

@Mr_Spud said:
I prefer Saflips. These are good for submitting coins and also for storage. For special raw coins I heat seal the Saflips with an impulse sealer.
These are Saflips

This is what I seal them with

Will buy some of these as well.

PerryHall

I suggest that you flatten the staples in any fold over and staple 2"X2" cardboard holder by carefully crimping them with a pair of pliers. I was at a coin show where a dealer had a box that was crammed full of these holders. I asked to see one of his gold eagles. The one he showed me had the window of the holder torn and there was a very heavy vertical scrape across the face of his coin from the staple of an adjoining staple holder. This happened about 30 years ago and I still remember to this day.
Another suggestion is to wipe the inside of the holder with a clean cotton cloth to remove the cardboard dust from the manufacturing process because the cardboard dust can cause spotting especially on copper proof coins. Another option is to use compressed air to blow off the carboard dust.

tyler267

@PillarDollarCollector said:

@Relaxn said:
Staples... Flatten your staples

???

Just take a pair of plyers and flatten the back of the staples. If you don't the small loop the metal staple creates can scratch the coin behind it when you pull it out of a box. Unfortunately there are way too many staple scratches on otherwise beautiful coins.

flyguyfl

I submit coins in flips inside a bubble wrap envelope from Walmart. Looks like good protection and minimal mailing cost.

Cougar1978

They (2x2 holders) are ok for inexpensive collector raw coins I put in album for shows. Or junk box. Helps pay expenses. Over time just about any coin can develop tarnish due to reaction with atmosphere and need a dip. Darkly tarnished coins no use for - will get worse over time. Plus a crummy investment.

habaraca

@Relaxn said:
Staples... Flatten your staples

I use a MAX stapler it flattens the staples for you, so no worries.

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwjvgeygpvr_AhVdkIkEHehQAC8QFnoECA4QAQ&url=https://www.maxusacorp.com/office_products/products/standard-desktop-flat-clinch-stapler-hd50df/&usg=AOvVaw0gGIksrup_yapG5yEzC7e4&opi=89978449

johnny9434

@tyler267 said:

@PillarDollarCollector said:

@Relaxn said:
Staples... Flatten your staples

???

Just take a pair of plyers and flatten the back of the staples. If you don't the small loop the metal staple creates can scratch the coin behind it when you pull it out of a box. Unfortunately there are way too many staple scratches on otherwise beautiful coins.

save yourself some heart break

JBK

The traditional cardboard 2x2s are actually an excellent storage method for coins, with two caveats, as others have mentioned.

First, wipe the inside of the Mylar windows to remove any cardboard dust that might cause spotting.

Second, after you have stapled the holders shut, crimp the rounded legs of the staples so they are even with the surface of the cardboard.

And stay away from self-sealing 2x2s as the adhesive may be another contaminant.

ricko

I prefer the flips (PVC free) to 2x2's....Though in the late nineties I did store a lot of coins in 2x2's. Cheers, RickO

gumby1234

Use a stapler that flattens the staples. Much easier than using pliers to squish them. $10