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Pullulan, alginate, and carboxymethylcellulose (CMC) films were solvent cast from aqueous polymer solution. At 55% RH and 20°C, their tensile strength and elongation at break were 67MPa and 11%, 49MPa and 5.2%, and 45MPa and 5.8%, respectively. Pullulan films had lower water vapor permeability than alginate and CMC films (4.4×10⁻⁷, 9.7×10⁻⁷, and 1.3×10⁻⁶gm/Pahm², respectively), but dissolved in water quicker than alginate and CMC films. By incorporating alginate and CMC into pullulan, water barrier and mechanical properties were weakened significantly. Blending pullulan with alginate or CMC up to about 17–33% (w/w total polymer) reduced film solubilization time in water. The addition of glycerol further reduced tensile strength, increased elongation at break, weakened water barrier properties, but enhanced solubilization in water. FTIR results indicated that blending pullulan with alginate and …