ConvaTec AQUACEL® Ag Foam Dressing 7" x 7" with 5-3/10" x 5-3/10" Pad Size, Adhesive ConvaTec Aquacel® Ag Adhesive Foam Dressing has a soft absorbent foam pad, a gentle Silicone adhesive and a waterproof bacteria barrier. It offers comfort and simplicity, plus the healing benefits of an Aquacel® interface. Soft absorbent foam pad enhances patient comfort and absorbs excess fluid. Aquacel interface gels on contact with wound exudate to maintain a moist environment.