Sterlitech Polycarbonate Track Etch (PCTE) and Polyester Track Etch (PETE) filters offer the lowest, non-specific binding of any filter membrane. The capture of samples occurs on a flat, glass-like smooth surface with an even distribution of particles captured on a single plane, simplifying microscopic and SEM examination of samples captured on the surface of the membrane.

• Sterlitech Track Etch filter membranes are manufactured and produced under class 100 condition during critical manufacturing steps. Therefore, the membrane is free of contaminants and pyrogens.
• Sterlitech PCTE and PETE membranes offer very low extractables. Both PCTE and PETE membranes are integral, plastic films, therefore, there is no sloughing or particle shedding.
• Sterlitech PCTE and PETE membranes are biologically inert. 
• They offer superior strength, with pressure tolerances in excess of 3,000 psi (when placed in an appropriate filter holder).
• Both filter membranes offer excellent chemical resistance and thermal stability, with PETE offering a higher chemical resistance.