FC108 Strong Acid Cation, Gel


FC108 is a premium grade, high capacity, gelular, sulfonated, polystyrene 8% crosslinked cation resin supplied in the Na or H form as moist, tough, uniform, spherical beads.

FC108 is intended for use in all water softening, dealkalization, deionization and chemical processing applications. FC108 is supplied with standard beads size distribution to give optimum operating capacity with minimum leakages of ions and also minimum pressure drop across the resin bed.
FC108-H is intended for use in demineralizers and in mixed beds.

FC108 is available in both Industrial Grade and Food Grade.

Black beads is available as well.


  • Industrial softening
  • Industrial demineralization when regenerated with acids


FC108 Strong Acid Cation Resin

Normal Beads

FC108 Black Resin

Black Beads

Polymer StructureGel polystyrene crosslinked with DVB
Functional GroupSulfuric Acid
Ionic FormNa+ / H+
AppearanceSpherical Beads
Particle Size (mm)0.315-1.25 ≥95%
Note: Other particle size ranges are also available.
Uniformity Coefficient1.6 max.
Moisture Content43-48% / 49-55%
Total Capacity (eq/l)2.00 min. / 1.80 min.
Shipping Weight (g/l)820 / 780
Specific Density (g/ml)1.28 / 1.20
Reversible Swelling, Na+→H+8% max.
pH Range0-14
Temperature Limit120℃ max. / 100℃ max.

If you are interested in our FC108 resin.