It is consist of polyurethane foam (or polyurethane film), silicon adhesive, released paper (or realesed film), on contact with wounds, the polyurethane foam absorbs much exudates and form gel to keep moist envinronment.

Product Description
High absorbency, it can absorb lots of exudates and reduce maceration to the skin. It has water-lock function.
The semi-permeable polyurethane film can protect the wound against water, bacterial and foreign matters.
Provide most environment to promote wound healing.
Non-adherent to the wound , no pain will occur when remove dressing.
It is soft, elastic and comfortable to the skin and has good cushioning.
It is a new kind of dressing which made from foam medical polyurethane which contains CMC.