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| Any Quantity | $1.40 | $1.46 | $1.48 |
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You should have the coins that you love as well as storage that you know would not compromise your treasures. Guardhouse 2.5x2.5" Double Pocket Flips consist of a high quality, unplasticized vinyl that is produced to be very clear, durable and very safe. Our inert rigid flips will not damage your collection in a way that soft PVC flips can and what they will do is keep your collection as clean as they should be. Guardhouse is the luxury showcase and storage of big dollars, medallion and challenge coins. It is just right in displaying your coins and medallions of any magnitude and it kept a clean and crystal clear view.
The right storage is one of the most crucial things that a new or an experienced collector can undertake in order to preserve the value and the beauty of numismatic collection. The media the coin holders are cast in could spell the doom or the flawless preservation. Guardhouse is a famous business that provides high quality and archival safe supplies to meet the requirement of serious collectors to the ultimate ends. These flips (2.5x2.5) are a perfect answer to larger parts, ensuring that they are out of the reach of the harmful environmental effects as well as physical damages, yet highly visible.
When dealing with knowledgeable collectors the word vinyl can evoke fear because of its connection to Polyvinyl Chloride (PVC) which is a known harmful material to a coin. It is important however to know that not every vinyl is the same. The safeness of a vinyl flip is fully determined by the case of using chemical softeners which are called plasticizers. The section is your definitive guide to the materials and this will enable you to make a decision on which to choose to add to your collection.
PVC (Polyvinyl Chloride) is another variety of plastic and soft and flexible coin flips are made of this. In an effort to attain this flexibility, manufacturers introduce plasticizers as chemical softeners. These plasticizers eventually rub off over time and more so when exposed to heat and humidity to the surface of the coin. This causes a deposition of a sticky greenish residue that has been referred to as green slime or even PVC damage.
This residue is not just an aesthetic problem but is corrosive in nature. During the breakdown of the plasticizers, there may be chemical reaction to create hydrochloric acid, which will chemically react with the metal of the coin and will cause microscopic pitting, corrosion and disfigurement to the surface of the coin in a permanent manner. This kind of damage especially occurs to copper and silver coins. It is an ongoing process of damage, and therefore the use of an active PVC residue will not be certified by leading grading services such as the Numismatic Guaranty Corporation (NGC).
These Guardhouse flips are manufactured out of unplasticized vinyl which is also referred to as uPVC or rigid vinyl. The key difference, however, is in the name: unplasticized means that the material is produced without the use of the toxic chemical softeners which ruin PVC. It has the effect of producing a hard, chemically stable, and inert plastic that is safe to store coins in the long term, in archival conditions.
Although technically containing polyvinyl chloride, the technology used in creating uPVC makes it a completely different and safer material to be used numismatically. It does not release corrosive chemicals when in normal storage conditions and it will not produce the harmful green residue that soft vinyl flips are known to produce. The stiffness of the uPVC is better over soft flips and the physical protection is given over bends and mishits. Numerous mints and numismatic professionals have labeled unplasticized flips as being safe to store in the long-term or even archival, giving the collector a trustful and secure method of storing their coins.
The top, or museum quality, level of archival storage is a biaxially-oriented polyethylene terephthalate (BoPET), or polyester film usually referred to as Mylar(R). Mylar is totally inert and has no additives that may damage coins. But to the everyday requirements of a large number of collectors and dealers uPVC can be an attractive and in many ways better substitute.
Guardhouse unplasticized vinyl flips will best fit most applications because of the right balance between safety, durability, and affordability, and create the right level of peace of mind without worrying about the higher price and potential fragility of Mylar.
The insertion of your coins into Guardhouse flips is easy but allows you to make your coins enjoy the full protection of the holder.
You should have the coins that you love as well as storage that you know would not compromise your treasures. Guardhouse 2.5x2.5" Double Pocket Flips consist of a high quality, unplasticized vinyl that is produced to be very clear, durable and very safe. Our inert rigid flips will not damage your collection in a way that soft PVC flips can and what they will do is keep your collection as clean as they should be. Guardhouse is the luxury showcase and storage of big dollars, medallion and challenge coins. It is just right in displaying your coins and medallions of any magnitude and it kept a clean and crystal clear view.
The right storage is one of the most crucial things that a new or an experienced collector can undertake in order to preserve the value and the beauty of numismatic collection. The media the coin holders are cast in could spell the doom or the flawless preservation. Guardhouse is a famous business that provides high quality and archival safe supplies to meet the requirement of serious collectors to the ultimate ends. These flips (2.5x2.5) are a perfect answer to larger parts, ensuring that they are out of the reach of the harmful environmental effects as well as physical damages, yet highly visible.
When dealing with knowledgeable collectors the word vinyl can evoke fear because of its connection to Polyvinyl Chloride (PVC) which is a known harmful material to a coin. It is important however to know that not every vinyl is the same. The safeness of a vinyl flip is fully determined by the case of using chemical softeners which are called plasticizers. The section is your definitive guide to the materials and this will enable you to make a decision on which to choose to add to your collection.
PVC (Polyvinyl Chloride) is another variety of plastic and soft and flexible coin flips are made of this. In an effort to attain this flexibility, manufacturers introduce plasticizers as chemical softeners. These plasticizers eventually rub off over time and more so when exposed to heat and humidity to the surface of the coin. This causes a deposition of a sticky greenish residue that has been referred to as green slime or even PVC damage.
This residue is not just an aesthetic problem but is corrosive in nature. During the breakdown of the plasticizers, there may be chemical reaction to create hydrochloric acid, which will chemically react with the metal of the coin and will cause microscopic pitting, corrosion and disfigurement to the surface of the coin in a permanent manner. This kind of damage especially occurs to copper and silver coins. It is an ongoing process of damage, and therefore the use of an active PVC residue will not be certified by leading grading services such as the Numismatic Guaranty Corporation (NGC).
These Guardhouse flips are manufactured out of unplasticized vinyl which is also referred to as uPVC or rigid vinyl. The key difference, however, is in the name: unplasticized means that the material is produced without the use of the toxic chemical softeners which ruin PVC. It has the effect of producing a hard, chemically stable, and inert plastic that is safe to store coins in the long term, in archival conditions.
Although technically containing polyvinyl chloride, the technology used in creating uPVC makes it a completely different and safer material to be used numismatically. It does not release corrosive chemicals when in normal storage conditions and it will not produce the harmful green residue that soft vinyl flips are known to produce. The stiffness of the uPVC is better over soft flips and the physical protection is given over bends and mishits. Numerous mints and numismatic professionals have labeled unplasticized flips as being safe to store in the long-term or even archival, giving the collector a trustful and secure method of storing their coins.
The top, or museum quality, level of archival storage is a biaxially-oriented polyethylene terephthalate (BoPET), or polyester film usually referred to as Mylar(R). Mylar is totally inert and has no additives that may damage coins. But to the everyday requirements of a large number of collectors and dealers uPVC can be an attractive and in many ways better substitute.
Guardhouse unplasticized vinyl flips will best fit most applications because of the right balance between safety, durability, and affordability, and create the right level of peace of mind without worrying about the higher price and potential fragility of Mylar.
The insertion of your coins into Guardhouse flips is easy but allows you to make your coins enjoy the full protection of the holder.
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