These dressings are generally made with a waxy coating so as to provide a total seal, and as a result do not have the absorbent properties of gauze pads.
In that case, they are commonly made with an opened side that lets air go out but not in.
They can also be used to enhance the penetration and absorption of topically-applied medications, such as ointments and creams.
Furthermore, they may be used as part of in vivo acute toxicity tests of dermal irritation and sensitization.
On the loss of a fingernail or thumbnail, the area under the eponychium (cuticle) can be packed with this type of dressing to act as a stent.