The PolyMesh™ Sponges are a cleanroom alternative to household grade abrasive pads. To sponges can be used where increased abrasion is required to remove photo resist, chemical deposits and fluxes. Ideal for fermentation tanks and veterinary labs. The abrasive mesh outer layer on the polyester pad deals with heavy soils but will not shed or flake. PolyMesh sponges hold up to strong disinfectants and can be autoclaved. Material is 100% polyester monofilament mesh/reticulated urethane foam. Sold Individually.