Sorbact Surgical Dressing Sorbact® Surgical Dressing is a sterile, bacteria and fungi-binding wound dressing. It consists of a green Sorbact® wound contact layer combined with an absorbent wound pad and a transparent acrylic adhesive film. Sorbact® Surgical Dressing absorbs and retains exudate and enables a moist wound environment. The waterproof backing film provides protection against external contamination and allows excess fluid to evaporate.