Petrolatum gauze is a lightweight cotton bandage which is for dressing of various types of wounds. They are made of fine, soft, gauze with white petrolatum or a semisolid mixture of hydrocarbons obtained from petrolatum. Removal of these bandages from wounds can cause minimal trauma to the wound. Petrolatum gauze is widely used in skin graft. A skin graft is one type of wound in which a piece of healthy skin replaces diseased tissue. It is mostly used over a badly injured area, severe burns and chronic infections. Petrolatum gauze is used to cover the skin graft to keep it moist and to increase attachment.This dressing will protect the open area from bacteria. It will not stick to the healthy tissue surrounding the wound. Skin graft adheres to the cells surrounding the wound to promote faster healing. Petrolatum gauze can also serve as an improvised chest seal, as it will occlude air-flow and stay in place unless physically disturbed.