HazWik® absorbents are made of surfactant-treated polypropylene which can be used on a wide range of chemicals, including hydrofluoric acid. Designed for use in tight spaces, under valves or under machinery lifted off the floor, pillows provide the greatest absorbency per square inch. Surfactant-treated, brightly colored absorbent picks up a wide range of aggressive chemicals while remaining chemically inert. HAZWIK® Absorbents are chemically inert, so they will not react with aggressive fluids. Green coverstock identifies product for ease of disposal and reduces likelihood of linting or tearing.