Sintered felt is a porous material created by compressing and heating metal fibers without completely melting them, a process known as sintering. This method bonds the fibers at their contact points, forming a durable yet permeable structure. The result is a material with high porosity, excellent mechanical strength, and thermal stability.

Sintered felt is widely used in filtration applications, including gas and liquid filtration in chemical processing, oil and gas industries, and power generation. It's also utilized in diffusion media for fuel cells, sound attenuation, and as a wicking material in heat pipes due to its capillary properties.

Compared to traditional woven or non-woven materials, sintered felt offers superior mechanical strength, temperature resistance, and longer service life. Its interconnected porous structure provides consistent filtration efficiency and can withstand cleaning and reuse. While traditional materials may be more cost-effective for low-demand applications, sintered felt is preferred for demanding environments where durability and performance are critical.