Medium-Duty General Purpose Absorbent Rolls are made with 60% recycled shop towel fibers Absorbs both oil and water as well as diesel fuel, grease, transmission fluid, hydraulic fluid, coolants, and many other fluids We have added a layer of meltblown polypropylene to our recycled absorbent core to create a sorbent that looks and acts similar to meltblown polypropylene sorbents Major raw material source comes from our excess shop towel material which creates a more price stable product vs. meltblown polypropylene sorbents Compatible with wall mount absorbent roll dispenser (part # 99915)Class A fire retardant when roll is dry (lab tested per ASTM E84) Made in the USA U.S. Patent No. 8,118,177 and other patents pending