0.936~0.965 g/cm³
The density of polyethylene sheet varies according to different types and processes. According to the authoritative data in the search results, the main range is as follows:
High-density polyethylene sheet (HDPE)
Density range: 0.941~0.965 g/cm³
This is the most common type of polyethylene sheet, with high crystallinity and mechanical strength, suitable for engineering fields.
Some ultra-high molecular weight polyethylene (UHMWPE) has a slightly lower density of about 0.936~0.964 g/cm³, but has better wear resistance and impact resistance.
Density of other types of polyethylene sheets
Medium-density polyethylene (MDPE): 0.916~0.940 g/cm³
Low-density polyethylene (LDPE): 0.910~0.925 g/cm³
These types are mostly used for packaging or film, and are rarely used in sheet form.
Note: Density may fluctuate slightly due to additives or production processes (such as extrusion, molding), but the density of HDPE sheets is usually stable above 0.94 g/cm³.