The names of plastic injection molding material sound like terms from chemistry class. Choosing the correct injection molding materials means understanding application requirements, which change between prototyping and production. Not everyone has a PHD in chemistry to choose a right material. When it comes to choosing injection molding materials, we need to consider many factors. The first thing is to understand the names and abbreviations of material, the advantages and disadvantages of chosen material, and the applications and grades. The most widely used injection molding materials include PMMA, ABS, PA, PC, PE, POM, PP, PS, TPE and TPU. This article will explain each injection molding materials.