... water no need detergent or soap,it is widely usedin kitchen,bathroom,floor,ceiling,sofa,car,office euquipmemt,etc.Nano sponge ... melamine sponge,It is also can used for interior decoration in super market,gym because it is cansoundproof,so can made ... of acoustic panel. It is also can used in aviation field. The size can determined by you. Pls feel ...