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POM is a strong and hard plastic, about as strong as plastics can be, and therefore competes with e.g. epoxy resins and polycarbonates. The price of POM is about the same as that of epoxy. There are two main differences between POM and epoxy resins: epoxy is a two-component resin that can be cast, and adheres to everything it touches,
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The result is a hard plastic material. [27] Asbestos was gradually abandoned as filler because many countries banned the production of asbestos. [10]: 9 [28] Bakelite's molding process had a number of advantages. Bakelite resin could be provided either as powder or as preformed partially cured slugs, increasing the speed of the casting.
The larger circular clear black area represents the larger outer side of the thick one-piece plastic cone "window". Being transparent and durable, PMMA is a versatile material and has been used in a wide range of fields and applications such as rear-lights and instrument clusters for vehicles, appliances, and lenses for glasses.
Plastic cards usually serve as identity documents, thus providing authentication. In combination with other assets that complement the data stored on the card, like PIN numbers , they also serve authorization purposes, most often as bank cards for allowing their holders to do financial transactions .
After grading, the comics are placed in an inner well, a sealed sleeve of Barex, a highly gas-impermeable plastic polymer. [citation needed] Then, the comics are sonically sealed in a hard plastic, tamper-evident holder. This process is often referred to in comics jargon as "slabbing".
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