Dynarex Petroleum Gauze DressingDynarex Petroleum Gauze Dressings Dynarexs Petroleum Gauze is a lightweight, gauze dressing impregnated with petroleum jelly, helping maintain a moist wound environment for autolytic healing. The dressing conforms closely to the wound bed and will not adhere upon removal. Petroleum Gauze is used as a primary dressing on low draining wounds of full thickness such as, donor sites, minor burns, tube sites and non infected wounds at stages 2, 3 and 4.