• Waterproof composite dressings have four distinct layers for versatile use, including as a primary orsecondary dressing
• Layer 1 is a nonadherent contact layer that protects the wound site and will/> • 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 external contaminants andmaintain an optimal wound environment