Mineral Sponge is a tried and tested industrial absorbent that can be used for oils, fuels, paints and a wide range of chemicals. Mineral Sponge is made from Zeolite a naturally occurring volcanic mineral that has a 3D-lattice structure giving it a large internal surface area. Mineral Sponge will absorb up to 75% of its own weight of liquid. Fumes and odours are also suppressed by Mineral Sponge. Non-toxic. Non-hazardous. Natural product. 22L bag weighs approximately 15Kg and will absorb up to 16L of spilt material.