The HDPE height-adjusting pad is non-toxic and odorless, and the density is in the range of 0.940~0.976 g/cm3; the operating temperature can reach 100 °C; the melting temperature is 120~160 °C. It has good heat and cold resistance, good chemical stability, high rigidity and toughness, and high mechanical strength. Dielectric properties, wear resistance, and environmental stress cracking resistance are also good.