Basic Properties
Thermal Stability, Thermal Degradability
Solubility Differences Grade-by-grade
Water solubility
Resistance to Oils and Organic Solvents
Strength and Weathering resistance
Good heat sealability and adhesiveness
Good gas barrier properties
Good printability
  Thermal Stability, Thermal Degradability
    Water-soluble PVA film is possible to seal at temperature (120-180) like the polyethylene film and its heat-sealing intensity can arrive to 9.1N/cm. It is fit for heat sealing of resistance and sealing in high frequency.
    PVA slowly discolors above 100, discolors within a short time above 150, and rapidly discolors and begins to thermally decompose above 200.