RoTrac® Track-Etched Membranes



For RoTrac® applications demanding excellent membrane robustness, the membranes are reinforced with special nonwovens. Reinforced RoTrac® Track-Etched Membranes are used where membranes are exposed to mechanical strain.

The nonwovens are selected according to the customer’s requirements.The cross-section of a reinforced membrane with nonwoven clearly shows the actual membrane as well as the considerably rougher nonwoven structure for the mechanical support. The individual nonwoven fibers are much larger than membrane pores, the latter being crucial to the functioning of the membrane as barrier.