Plastic is more or less a common element for a wide range of synthetic polymerization products. It consists of polymers and organic condensation. In addition, plastic also contains some other substances that improves its performance and reduce its cost. Plastic is also referred as polymer material. Polymers can be classified as thermoplastic, engineering plastics, thermo set, elastomer, etc. In specific molecular structure, some polymers are partially crystalline and partially amorphous. Although plastics are bad conductor of electricity yet it has its worldwide importance today. Many electronic items, home supplies, office products, clinical products, etc. are made up of plastics. With the development of new technologies, plastic recycling has been successful to reduce wastage cause due to plastics. This field also supports large number of engineering who are known as “plastic engineers”. Plastic Engineering consists of processing, design, development, and production of plastic products. Plastic Engineers has to meet up with difficult challenges as mechanical properties of polymers are often complicated to quantify. With the advancement of world, plastic products and engineered polymers will continue to serve the market.