XResin's Polymeric adsorbents  are very  porous spherical polymers  based on  highly crosslinked,  macroreticular polystyrene, aliphatic, or  phenol-formaldehyde condensate polymers. Polystyrenic adsorbents  are more selective to non-polar products and their pore size  has been tightly controlled to enhance this selectivity. The  variations  in  surface  area  and  pore  volume  give  each  product   unique  advantages  in  certain applications. Polyacrylic  adsorbents are  designed to remove  hydrophilic organic compounds  from less polar solutions  /  solvents.