These pores or "cages" want to readsorb water or other molecules. Aided by strong ionic forces caused by the presence of cations such as sodium, calcium and potassium, the molecular sieve will adsorb a considerable amount of water or other fluids. If the fluid to be adsorbed is a polar compound, it can be adsorbed with high loadings even at very low concentrations of the fluid.

This strong adsorptive force allows molecular sieves to remove many gas or liquid impurities to very low levels (PPM or less).

Another feature of molecular sieve adsorbents is its ability to separate gases or liquids by molecular size. The pore or "cage" openings are of the same size as many molecules. In the case of hydrocarbon paraffins, the normal, straight chained molecules can fit into the pores and be adsorbed while the branched chain molecules cannot enter the pores and pass by the molecular sieve adsorbents unadsorbed.

Type 3A Type 4A Type 5A Type 13X Type Y & ZSM-5 Activated Molecular Sieves Insulating Glass Molecular Sieves