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The first is that the density of resin is greater than that of plastic, and the other is that resin is more resistant to combustion and has higher hardness than plastic. Resin usually refers to the raw material, which softens after being heated. It is in a solid and semi-solid state at room temperature. Plastics are mainly It uses resin as the main raw material. Simply put, plastic is the finished product of resin. Resins are divided into natural resins and artificial resins, and the polymer structure also determines the physical and chemical properties of the resin.