Petroleum resin is produced by deep‑processing fractions such as C9 aromatics, heavy cracked diesel, heavy gasoline and C5 through catalytic polymerization or thermal polymerization. It is a pale‑yellow flaky or granular solid and a critical auxiliary agent for multiple industries, suitable for adhesives, coatings, inks and other fields. Its core advantages lie in the rubber industry: it features good compatibility with various rubbers and greatly improves the bonding strength of rubber compounds to solve adhesion‑related problems; it simplifies processing procedures, boosts production efficiency and product consistency; it optimizes rubber structures and enhances tear resistance, wear resistance and anti‑aging performance, while hydrogenated grades deliver superior weather resistance. Multiple grades are available to meet diverse requirements, and it can partially replace high‑priced natural rubber to achieve quality upgrading and cost optimization, making it an essential additive for rubber product manufacturing. Follow me to learn more chemical‑industry knowledge.