3M Healthcare Tegaderm™ Non-adherent Contact Layer Dressing 3" x 4", Woven Nylon Fabric, Non-toxic A primary non-adherent wound contact layer designed to protect the wound and to allow free passage of exudates in to a secondary dressing. The silicone is designed to allow the wound contact layer to gently stick to peri-wound skin unassisted to allow for easy application of the secondary dressing.