C9 cold-polymerized petroleum resin is a chemical compound synthesized from C9 raw materials through a cracking process. It forms carbon cationic active centers catalyzed, resulting in chain polymerization. This resin is not a polymer but an oligomer with a molecular weight ranging from 300 to 3000. C9 cold-polymerized petroleum resin is typically not used in isolation; instead, it serves as an accelerator, modifier, or is combined with other resins in various applications. To ensure the quality and safety of C9 cold-polymerized petroleum resin, it should be stored indoors at a controlled ambient temperature not exceeding 35°C and at a relative humidity level of no more than 85%. During transportation, whether by road, sea, or rail, it's crucial to take precautionary measures against fire, sunlight, rain, and to prevent direct contact with hands. Packaging for this product should consist of 25kg multi-layer composite paper bags or larger bags with a net weight of 500kg or 1000kg. As a chemical raw material with specialized industry terminology, this product is designed for use in various applications, leveraging its unique properties as an accelerator and modifier in combination with other resins.