What are Transparent Plastics? Transparent plastics are lightweight, versatile polymers engineered for high clarity and optical transparency, making them suitable replacements for glass in numerous applications. Key types include polycarbonate (PC), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polystyrene (PS), polypropylene (PP), polymethyl methacrylate (PMMA), and others like...