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The quality of every coin collection, whether it be the amateur collector, or the serious investor is paramount. The kind and type of storage materials you use is the first and most important line of defence. Guardhouse 2x2 Double Pocket Flips are designed to offer a safe, dependable and above all a chemically safe place to maintain your coins.
This 10-pack comes in handy when it is time to organize new purchases, or re-equip storage of most valuable items. Each flip is made from a high-quality, rigid, unplasticized vinyl, ensuring they are free from the harmful chemical softeners that cause destructive PVC damage.
The chemical composition of a plastic coin holder is the most critical aspect to consider when deciding on which coin holder to pick. The scourge of PVC damage has been advising collectors on the danger of PVC damage for decades. This is where the material science behind Guardhouse flips is necessary into ensuring that the material science is necessary to provide you peace of mind.
PVC damage is used to describe the permanent damage of soft and flexible vinyl flips. These soft flips are added with chemical additives known as plasticizers so that they become pliable. Such plasticizers can also seep out of the plastic over time, particularly with heat and humidity, and accumulate on the surface of a coin. This leaves a sticky green, or milky residue which is highly acidic, and causes permanent pitting and scarring of the metals. This is to an extent that even the best grading services such as NGC will not certify a coin with active PVC left on it.
Guardhouse flips are prepared out of unplasticized polyvinyl chloride (uPVC). The most important word is unplasticized. This implies that the vinyl is produced as a hard, stable one without the use of the dangerous chemical softeners (plasticizers). Although technically a member of the vinyl family, it has entirely different chemical properties to those of soft, plasticised PVC and uPVC is an inert, durable, chemically stable material that is well recognised as a safe and reliable medium to long term store of coins.
Biaxially-oriented polyethylene terephthalate, or BoPET, is a form of polyester most often called Mylar, which is the optimum archival material, doubling as perhaps the best museum storage material available to collectors. Mylar is also chemically inert and does not contain any additives. But it is also much more costly and may be more subject to scratch and crack than uPVC.
Since the majority of collectors and investors are extremely interested in this product, Guardhouse uPVC flips are the choice of the expert, the one which will offer the best balance of safety, durability, clarity, and value. They are also strong, chemically stable and far cheaper and more convenient than Mylar protection.
In order to ensure that your Guardhouse flips offer maximum protection, make sure that you do the following simple steps which have been advised by numismatic experts:
The quality of every coin collection, whether it be the amateur collector, or the serious investor is paramount. The kind and type of storage materials you use is the first and most important line of defence. Guardhouse 2x2 Double Pocket Flips are designed to offer a safe, dependable and above all a chemically safe place to maintain your coins.
This 10-pack comes in handy when it is time to organize new purchases, or re-equip storage of most valuable items. Each flip is made from a high-quality, rigid, unplasticized vinyl, ensuring they are free from the harmful chemical softeners that cause destructive PVC damage.
The chemical composition of a plastic coin holder is the most critical aspect to consider when deciding on which coin holder to pick. The scourge of PVC damage has been advising collectors on the danger of PVC damage for decades. This is where the material science behind Guardhouse flips is necessary into ensuring that the material science is necessary to provide you peace of mind.
PVC damage is used to describe the permanent damage of soft and flexible vinyl flips. These soft flips are added with chemical additives known as plasticizers so that they become pliable. Such plasticizers can also seep out of the plastic over time, particularly with heat and humidity, and accumulate on the surface of a coin. This leaves a sticky green, or milky residue which is highly acidic, and causes permanent pitting and scarring of the metals. This is to an extent that even the best grading services such as NGC will not certify a coin with active PVC left on it.
Guardhouse flips are prepared out of unplasticized polyvinyl chloride (uPVC). The most important word is unplasticized. This implies that the vinyl is produced as a hard, stable one without the use of the dangerous chemical softeners (plasticizers). Although technically a member of the vinyl family, it has entirely different chemical properties to those of soft, plasticised PVC and uPVC is an inert, durable, chemically stable material that is well recognised as a safe and reliable medium to long term store of coins.
Biaxially-oriented polyethylene terephthalate, or BoPET, is a form of polyester most often called Mylar, which is the optimum archival material, doubling as perhaps the best museum storage material available to collectors. Mylar is also chemically inert and does not contain any additives. But it is also much more costly and may be more subject to scratch and crack than uPVC.
Since the majority of collectors and investors are extremely interested in this product, Guardhouse uPVC flips are the choice of the expert, the one which will offer the best balance of safety, durability, clarity, and value. They are also strong, chemically stable and far cheaper and more convenient than Mylar protection.
In order to ensure that your Guardhouse flips offer maximum protection, make sure that you do the following simple steps which have been advised by numismatic experts:
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