Specifications of our track-etched membranes

• Features & Specs
• Black Membranes
• Cell Culture Membranes
• Other

it4ip track-etched membranes are manufactured from high-quality polycarbonate, polyester or polyimide™ film; they have a smooth flat surface, a narrow pore size distribution and a well-controlled pore shape.

They exhibit excellent chemical resistance and thermal stability can be significantly strengthened (350°C - 660°F) by the use of polyimide™-based track-etched membrane.

 CHEMICAL RESISTANCE of track-etched membranes 
 POLYIMIDE™-BASED track-etched membranes

With a standard thickness range from 10 to 25 microns (availability up to 100 microns), track-etched membranes are available in a broad range of well-defined pore sizes and pore densities, and are characterised by a high flow rates.

STANDARD PARAMETERS of track-etched membranes
MATERIAL SAFETY DATA SHEET of track-etched membranes

MSDS - POLYCARBONATE (PC)
MSDS - POLYESTER (PET)
MSDS - POLYIMIDE (PI)

Other combination of pore size, pore density and thickness available on request; please contact us or your local distributor for more information.

  BENEFITS OF TRACK-ETCHED MEMBRANES

• Low protein binding and low extractables ensuring no sample contamination
• High chemical and thermal resistance
• Smooth and flat surface for good detection of particles

  PORE SIZE & PORE SHAPE

Track-etching process produces a membrane with precise pore size and narrow pore size distribution for an accurate separations by particle size.  Pore size is usually between -20 and 0% of the nominal pore size while the intralot variance for pore size is typically lower than 5%.

Pore shape can be also contolled by the track-etching process and truly cylindrical pores can be reached when required.

Although most track-etched membranes have a structure in which the pores are not perpendicular to the membrane surface, membrane with parallel pores can be also manufacture; this is relevant for application requiring light microscopy.

Pore shape control in nanoporous particle track etched membrane, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 174, 116-122. (10.1016/S0168-583X(00)00455-9)

top page