On March 5, 2026, a comprehensive analysis covering the formulations, characteristics and applications of 50 modified polyether polyols and 50 polyester polyols was officially released, providing a full range of material selection references for industrial fields such as polyurethane foam, adhesives, elastomers and coatings. Modified polyether polyols retain the advantages of low viscosity and hydrolysis resistance of ordinary polyethers, and enhance flame retardancy, wear resistance and other properties through chemical modification. Among them, SAN graft type improves foam load-bearing capacity, and phosphorus-based flame retardant type achieves halogen-free environmental protection. As the "soft segment core" of polyurethane materials, polyester polyols are divided into three categories: aliphatic, aromatic and special. Aliphatic varieties have good hydrolysis resistance and are the first choice for elastomers; aromatic varieties have high rigidity and low cost, and are widely used in the foam field; special varieties cover high-end varieties such as degradable, high temperature resistant and self-healing, adapting to extreme environments and special needs. This analysis details the formulation, advantages, disadvantages and application scenarios of each category, helping the industry to select materials accurately and reduce trial and error costs. For more information, please click: https://www.tiktok.com/@mia_iota/video/7597717976720149782