Aquacel AG Extra Silver Hydrofiber Wound Dressing Hydrophobic bandage of 100% pure NaCMC, absorbent fiber that binds fluid and bacteria and forms a cohesive gel that creates a beneficial wound environment Can be used most types of fluid wounds. Extra contains more AQUACEL Ag and reinforcing fibers of cellulose that make the bandage also attached to the gel condition, so it is easier to remove from the wound.