Table 2: Occlusive Dressings Benefits1

Polymer Foams Hydrogels Polymer Films Alginates Hydrocolloids
Absorbent + + - + ±
Transparant - ± + - -
Suited for exudative wounds + ± - + -
Permeable to water vapor + + + + -
Permeable to oxygen + + + + -
Prevents bacterial entry - - - - +
Adherent to nonwounded skin - - + - +