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The main aim of any numismatist is to maintain the state of his/her collection and its worth. Your initial and most crucial safeguard against environmental and physical harm is which storage solution you specify. Guardhouse 2x2 Double Pocket Flips are engineered to provide a secure, reliable, and most critically, chemically safe environment for your coins, offering an ideal balance of protection, clarity, and value.
To suit the sophisticated collector, these flips are printed on a top-grade rigid un-plasticized vinyl, thus these flips are manufactured without the destructive high temperature PVC softeners that make it damaging to collections.
The Guardhouse 2x2 flip is a staple in the numismatic community for its simple and effective design. Open each flip is 4 x 2 inches and when folded up it fits into a 2 x 2 classic industry standard size that fits perfectly into 20-pocket binder pages and special coin storage boxes.
This is very important to preserve the intelligent double-pocket design. Putting the coin in one pocket and a descriptive paper insert in the other puts up a physical barrier so that any prospective acids or chemicals in the paper and ink never even get near the surface of the coin. Such a straightforward divide is one of the important rules of archival storage.
Guardhouse stands out in its flips in the high quality of construction. They are made of a heavy-duty 7-mil vinyl that is also significantly thicker and stiffer than numerous other options, providing better protection against the bending and against impacts. All flips are two-polished to ensure the best clarity and shipped pre-separated so there is no chance that ripping them can damage it.
The chemical composition of the plastic coin holder is the most important consideration when buying one. Collectors have been cautioned against the risks of PVC damage over the past decades and this is where knowledge of the material of your Guardhouse flips comes in handy.
PVC damage is defined as the irreversible damage which can be caused by soft, flexible flips. These soft flips have chemical additives termed as plasticizers so that they can bend. Gradually, especially in the presence of high temperatures and humidity, these plasticizers may be dissolved out of the plastic and they are layered on the surface of a coin. This leaves behind a sticky, greenish or milky residue that when untreated will produce an acidic reaction that leaves pitting and scarring on the metal as it corrodes, permanently. This harm is so profound that coins with active PVC residue will not qualify to be certified by the most highly regarded grading services such as NGC and may be graded as Details should they be permanently damage by it.
Guardhouse flips are made from unplasticized polyvinyl chloride (uPVC). It is the key word, unplasticized. This implies that the vinyl is crafted in its staid stature without the incorporation of bad health chemicals that make it flexible (plasticizers). Although it is technically a member of the vinyl family, its chemical properties are completely different to the soft, plasticized PVC. uPVC is a durable, inert and chemically stable material that has come to be known as a safe and reliable choice of medium to long-term storage of coins.
For collectors seeking museum-grade, multi-generational storage, the ultimate archival standard is biaxially-oriented polyethylene terephthalate (BoPET), a type of polyester commonly known by the brand name Mylar®. Mylar is inert and has no additives. But on the other hand it is also much more costly, more liable to be scratched, and may be brittle, with a less durable seam weld than uPVC flips.
To the extreme majority of collectors and investors, the Guardhouse uPVC flips are the professional choice, giving the most superb union of safety, use, clarity, and best value. They provide a strong, chemically resistant protection and there are no high costs and physical disadvantages of Mylar, so they are the better practical way to help build and protect a valuable collection.
The best way to take advantage of the benefits provided by your Guardhouse flips is to take the following easy steps suggested by numismatic experts:
The main aim of any numismatist is to maintain the state of his/her collection and its worth. Your initial and most crucial safeguard against environmental and physical harm is which storage solution you specify. Guardhouse 2x2 Double Pocket Flips are engineered to provide a secure, reliable, and most critically, chemically safe environment for your coins, offering an ideal balance of protection, clarity, and value.
To suit the sophisticated collector, these flips are printed on a top-grade rigid un-plasticized vinyl, thus these flips are manufactured without the destructive high temperature PVC softeners that make it damaging to collections.
The Guardhouse 2x2 flip is a staple in the numismatic community for its simple and effective design. Open each flip is 4 x 2 inches and when folded up it fits into a 2 x 2 classic industry standard size that fits perfectly into 20-pocket binder pages and special coin storage boxes.
This is very important to preserve the intelligent double-pocket design. Putting the coin in one pocket and a descriptive paper insert in the other puts up a physical barrier so that any prospective acids or chemicals in the paper and ink never even get near the surface of the coin. Such a straightforward divide is one of the important rules of archival storage.
Guardhouse stands out in its flips in the high quality of construction. They are made of a heavy-duty 7-mil vinyl that is also significantly thicker and stiffer than numerous other options, providing better protection against the bending and against impacts. All flips are two-polished to ensure the best clarity and shipped pre-separated so there is no chance that ripping them can damage it.
The chemical composition of the plastic coin holder is the most important consideration when buying one. Collectors have been cautioned against the risks of PVC damage over the past decades and this is where knowledge of the material of your Guardhouse flips comes in handy.
PVC damage is defined as the irreversible damage which can be caused by soft, flexible flips. These soft flips have chemical additives termed as plasticizers so that they can bend. Gradually, especially in the presence of high temperatures and humidity, these plasticizers may be dissolved out of the plastic and they are layered on the surface of a coin. This leaves behind a sticky, greenish or milky residue that when untreated will produce an acidic reaction that leaves pitting and scarring on the metal as it corrodes, permanently. This harm is so profound that coins with active PVC residue will not qualify to be certified by the most highly regarded grading services such as NGC and may be graded as Details should they be permanently damage by it.
Guardhouse flips are made from unplasticized polyvinyl chloride (uPVC). It is the key word, unplasticized. This implies that the vinyl is crafted in its staid stature without the incorporation of bad health chemicals that make it flexible (plasticizers). Although it is technically a member of the vinyl family, its chemical properties are completely different to the soft, plasticized PVC. uPVC is a durable, inert and chemically stable material that has come to be known as a safe and reliable choice of medium to long-term storage of coins.
For collectors seeking museum-grade, multi-generational storage, the ultimate archival standard is biaxially-oriented polyethylene terephthalate (BoPET), a type of polyester commonly known by the brand name Mylar®. Mylar is inert and has no additives. But on the other hand it is also much more costly, more liable to be scratched, and may be brittle, with a less durable seam weld than uPVC flips.
To the extreme majority of collectors and investors, the Guardhouse uPVC flips are the professional choice, giving the most superb union of safety, use, clarity, and best value. They provide a strong, chemically resistant protection and there are no high costs and physical disadvantages of Mylar, so they are the better practical way to help build and protect a valuable collection.
The best way to take advantage of the benefits provided by your Guardhouse flips is to take the following easy steps suggested by numismatic experts:
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