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Tegaderm consists of a thin polyurethane membrane coated with a layer of an
acrylic adhesive.
The dressing, which is permeable to both water vapour and oxygen, is impermeable
to micro-organisms and once in position, it provides an effective barrier to
external contamination, whilst producing a moist environment at the surface of
the wound by reducing water vapour loss from the exposed tissue.
Under these conditions in shallow wounds, scab formation is prevented and
epidermal regeneration takes place at an enhanced rate, compared with that
which occurs in wounds treated with traditional dry dressings.
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