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What is the difference between high density polyethylene board and low density polyethylene board?

May 17, 2019

With the development of the economy, high-density polyethylene sheets have appeared in polyethylene sheets. What is the difference between them and low-density? Next, Tangyin Xinxing Plastics Xiaobian introduces high-density polyethylene sheets and What is the difference between low density polyethylene sheets.



The density of the high density polyethylene sheet (HDPE board) is 0.97 to 0.98 g/cm3. It has good heat resistance and cold resistance, good chemical stability, high rigidity and toughness, and good mechanical strength. Dielectric properties and environmental stress crack resistance are also good. High-density polyethylene sheets are widely used in gas transportation, water supply, sewage, agricultural irrigation, fine particle solids transportation, and oilfield, chemical, postal and telecommunications, etc., especially in gas transportation.


Low density polyethylene sheet (LDPE board): density is 0.92~0.93g/cm3. It is soft in nature, has good elongation, electrical insulation, chemical stability and processing properties, but has poor mechanical strength, moisture barrier, gas barrier and solvent resistance.