Plastic injection molding is defined as the process of forming durable plastic products such as tanks, bottles, auto body parts and even the human body parts meant for amputation. With the growing developments in the technology world; more and more manufacturing companies dealing with the manufacturing of plastic body parts; share their opinion about using the custom plastic molding technique. They say that not only is this process reliable and economical, but it also requires low supervision and gets you the product with the greatest accuracy. While these advantages have added on to the increasing use of the process; there is something which you are not aware of completely. It is the type of plastic that is used mostly by these injection molding companies. Before getting into an in-depth analysis about the types of plastic put to use; it is essential to understand the meaning of polymers. They are molecules classes bearing repetitive structural units of larger number, interconnected through the covalent bond. Types of plastic used by industries are mentioned below:

• Polyethylene compounds

Reports have suggested that of all the different types of polymer used by the plastic molding industries; at least 80-90% of the products are made from Polyethylene compounds. These include compounds such as HDPE, LPDE and LLPDE.

• PVC

PVC or Polyvinyl Chloride is commonly defined as a major thermostatic plastic compound which has an extensive variety of uses. The major and most vital portion of the PVC is derived from both salt and oil. Being a highly versatile polymer; this material finds east compatibility with a number of additives.

• Nylons

Only a certain portion i.e. 4% of the companies make use of Nylons which are those plastic compounds popularly known as polyamides. Such compounds are mostly used for the production of fiber and film products, but are also available in the form of compounds which can be easily molded.

Depending upon the material need to be manufactured; the companies dealing with plastic injection molding select their requisite plastic compound.

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