Nylon Monofilament mesh filter bags are absolute rated. The nylon mesh is stronger than polyester meshes. Nylon mesh is easy to clean and flexible. Nylon has an excellent compatibility with water, vegetable oils from animals and plants, petro-oils, organic solvents and micro-organisms. Nylon has a good rating with Alkalis. It is fair with Organic acids. It should not be used with mineral acids or oxidizing acids.