This category includes various pellets, powders, fibers, and liquids that can be added to plastic during a molding or compounding process. Additives will change the properties of the plastics that they are added to. This can be as simple as color, or adding a slip agent to help parts come out of the mold more easily. Other additives will act as fillers to add dimensional stability, tensile or flexural strength, or other features.

This is a grouping of Commodity Resins that either do not have a godo classification or are for uses other than molding, such as pellets for stuffing bean bags, blankets, or dolls.

This is class of thermoplastic Polyolefins that includes Polymethylene as the base monomer. The typical resin is PolyMethylPentene (PMP). Wikipedia Link

Polypropylene (PP) is thermoplastic polyolefin. It can be formulated as a homopolymer (PPH) or a copolymer (PPC). Copolymers are more flexible that homopolymers and can reach up to high impact ratings including No Break. Polypropylene is a little harder than ethylene. Its natural color is a milky white, but clarifiers can be added to reach very good levels of clarity. Wikipedia Link

Polyethylene (PE) is a thermoplastic polyolefin. It is produced in varying densities and classified as Low, Medium, and High, Densities (LDPE, MDPE, and HDPE). There are other specialty varieties like Very Low Density (VLDPE) and Linear Low Density (LLDPE). Polyethylene can be used in a wide variety of applications from film extrusion, to blow molding, injection molding, compression molding, and rotomolding. It is resistant to most acids and very durable. Wikipedia Link