Stratasorb Waterproof Adhesive Island Wound DressingsWaterproof composite dressings have four distinct layers for versatile use, including as a primary or secondary dressing Layer 1 is a nonadherent contact layer that protects the wound site and will not stick to granulating tissue Layer 2 is a soft pad that absorbs drainage and cushions Layer 3 is a nonwoven backing with an adhesive border to securely hold the dressing in place Layer 4 is a semiocclusive, waterproof polyurethane film that helps deter