Ethylene imine polymer is widely used in various industrial and commercial applications due to its unique properties. It is commonly employed as a flocculating agent in water treatment processes, where it helps to clarify water by aggregating fine particles for easier removal. In the paper industry, it serves as a wet-strength additive, enhancing the durability of paper products when exposed to moisture, and improves ink absorption and printability. The polymer is also utilized in the textile industry as a finishing agent to improve the fabric's wrinkle resistance and dye affinity. Additionally, it finds application in the production of adhesives and coatings, where it enhances binding strength and durability, and as a surface coating in paints to increase scratch resistance and environmental durability. In the rubber industry, it improves physical properties such as flexibility and durability. In the plastic industry, it enhances mechanical properties and product durability. In the field of personal care, it is used in hair and skincare products for its conditioning and film-forming properties, increasing stability and efficiency. Its versatility and effectiveness make it a valuable component in numerous industrial processes.