PVC is an acronym of the ย words PolyVinyl Chloride, which is the full name of the polymer that is used to make Vinyl Sheets and Film. ย So the term Vinyl and PVC both refer to the same class of material. ย Flexible Vinyl Film is the kind of material your Grandmother used to put over her good living room furniture. ย Those clear blister packs around consumer goods that are impossible to open without a knife is thermoformed rigid Vinyl Sheets.