Reticulated polyurethane foam is a particularly versatile foam type that is most often used in applications involved in sound absorption, fluid management, and outdoor cushioning. The material features high tensile tear and elongation properties. Reticulated polyurethanes also have a high resistance to chemicals, making it ideal for filtration products like lawn mowers engines or clean room wipes.
Reticulated polyurethanes are available in various levels of porosity, which simply refers to the size of the individual pores of the foam, expressed in ppi (pores per inch). Highly porous foams, foams with larger pores, are used in applications like scrubber pads or furnace filters. Finely porous foams, on the other hand, have higher ppi ratings and are used in products like microphone windscreens and liquid filtration.