PC, polycarbonate, commonly known as "bulletproof glass glue", has good transparency and is a non-crystalline plastic. PC has become the fastest growing general engineering plastic among the five engineering plastics. Unless otherwise specified, the term "polycarbonate" as used herein refers to bisphenol A type polycarbonate and modified varieties thereof. 
PMMA is commonly known as plexiglass, acrylic, and chemical name polymethyl methacrylate. It is the most excellent variety of synthetic transparent materials to date, and the price is more suitable. Acrylic is also a non-crystalline plastic with good transparency.
In daily life, PC and PMMA have been widely used, and both have excellent transparency. Most people are easy to confuse the two. So what method should we use to distinguish them?
1, performance comparison
Table 1: Comparison of PC and PMMA performance
2, molding process
Table 2: Comparison of PC and PMMA molding processes
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