PTMG is a linear polyether glycol with primary hydroxyl groups at both ends. It easily reacts with isocyanates compounds (e.g. MDI, TDI), and generates polymers with the superior characteristic described below. ■ High impact resilience■ Hydrolysis resistance■ Flexibility at low temperature■ Abrasion resistance■ Tear resistance■ Fungus resistance The PTMG proposed by us is certified for