Plastic Injection Molding: Plastics, Polymers, and Resins

Plastic injection molding is a manufacturing process that is comprised of plastics, polymers, and resins. But what is the difference.

Custom Plastic Parts Can Be a Combination of
Plastic, Resin, or Polymer | 602-437-0136

Custom Plastic Parts: Resins and Polymers

What's the difference between a resin, a polymer, and plastic?   

A resin is a solid or sticky substance,a mixture of pre-polymers and reactive compounds that help it to harden. Resins can be synthetic, or natural based.

Amber is an example of a resin, as is dragon's blood, frankincense, myrhh, and copal.   A lot of natural resins are used in the fragrance industry.  Synthetic resins convert a liquid to solid.  Epoxy, for example is an example of a resin.
Bisphenol is another synthetic resin  Silicone is often used as a soft resin. A lot of cell phone cases are a combination of soft silicone resin and a hard plastic. Some custom plastic parts combine resins, polymers, and plastics.  Contact a plastics plant to see what they can and can't do.

Polymers are incredibly diverse.  They can be soft and easy to shape such as polymer clay, or hard, like lucite.  It can be opaque, translucent, or transparent. A plastics plant with the right facilities will be able to work in all three types of plastic.  But what about plastic itself?

Plastic Parts and What Plastic Is

According to WIKIPEDIA: "Plastic is a material consisting of any of a wide range of synthetic or semi-synthetic organics that are malleable and can be molded into solid objects of diverse shapes. Plastics are typically organic polymers of high molecular mass, but they often contain other substances. They are usually synthetic, most commonly derived from petrochemicals, but many are partially natural.[2] Plasticity is the general property of all materials that are able to irreversibly deform without breaking, but this occurs to such a degree with this class of moldable polymers that their name is an emphasis on this ability. Due to their relatively low cost, ease of manufacture, versatility, and imperviousness to water, plastics are used in an enormous and expanding range of products, from paper clips to spaceships [READ SOURCE ARTICLE].

So as you see, there is more to the plastics industry than you might think.  That's why it is a good idea to find a company that does plastic injection molding.

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