Synthetic resins are man-made materials that are used in a variety of applications. EPOXY, Alkyd, Polypropylene, Polycarbonate, Polythene, and Silicone are all examples of synthetic resins. EPOXY is a thermosetting polymer that is used for adhesives, coatings, and composites. Alkyd is a type of polyester resin that is used in paints and varnishes. Polypropylene is a thermoplastic polymer that is used for packaging and textiles. Polycarbonate is a strong, lightweight plastic that is used for eyeglass lenses and bulletproof windows. Polythene is a thermoplastic polymer that is used for packaging and insulation. Silicone is a synthetic rubber that is used for sealants and lubricants.