1.38 g/cm³
According to the search results, the density of polyvinyl chloride (PVC) film varies slightly in different sources, but is mainly concentrated in the following range:
1.38 g/cm³
In the data that directly mention the density of PVC film, this value is clearly given.
Other sources, such as those that mention the density range of PVC as 1.3~1.45 g/cm³, and the relative density given as 1.25~1.5, all cover the typical value of 1.38 g/cm³.
Other similar values and respectively mention the density of PVC as 1.32 g/cm³ and 1.4 g/cm³, which may be related to the specific formulation (such as plasticizer content) or test conditions.