Foam dressings is foamed by adding CMC to medical polyurethane that composed foamed polymer solutions with
small, open cells that can hold fluids
The contact area of a foam dressing is nonadherent so the
dressing is easy to remove while the outer layer of the dressing is often hydrophobic or waterproof to keep out bacteria and other
contaminants.
The product covered with breathable polyurethane film on
the surface is a composite product
Foam dressings come either with or without a hydrocolloid
adhesive border and in many sizes and shapes to fit different types of wounds.
