Filter cloths are manufactured in several materials. While natural fibres are still used for some applications, most filter fabric are nowadays made of synthetic materials.
Stainless steel or steel products are still used, but they are limited to special shaping applications or very large screen filtration. Contrary to popular belief, depending on the filtration rating, stainless steel filter fabrics are not necessarily mechanically stronger than synthetic cloths.
Among the synthetic filter fabrics, there are a variety of materials such as nylon, polyester, polypropylene… and more technical and expensive materials such as PPS, E-CTFE, PEEK, PTFE…
The various synthetic materials all have a cost, the variability of which can vary from 1 to 100. It is therefore essential to target the filtration rating and all the peripheral ingredients such as PH, temperature, flow rate, pressure, mechanical resistance, budget, etc. as well as possible for each application.