FA411 Weak Base Anion Gel


FA411 is a unique weak base resin, with a gel acrylic divinylbenzene matrix and tertiary amine functionality. The special properties are associated with the extremely low rinse requirement after regeneration with caustic soda together with an increase in useful operating capacity of up to 10% over similar resins.

FA411 shows excellent resistance to organic fouling and because of its ability to adsorb and desorb organics efficiently, can act as a guard column for strong base polystyrene resin that may be placed downstream in a demineralisation system.

FA411 shows unique resistance against osmotic shock attrition as well as being physically resistant to mechanical breakage.


  • Demineralization of Water High in Organic Matter


FA411 Weak Base Anion Resin Gel
Polymer StructureGel polyacrylic crosslinked with DVB
Functional GroupTertiary Amine
Ionic FormFree Base
AppearanceSpherical Beads
Particle Size (mm)0.315-1.25 ≥95%
Note: Other particle size ranges are also available.
Uniformity Coefficient1.6 max.
Moisture Content56-63%
Total Capacity (eq/l)1.60 min.
Shipping Weight (g/l)690
Specific Density (g/ml)1.08
Reversible Swelling, FB→Cl-25% max.
pH Range0-14
Temperature Limit60℃ max.

If you are interested in our FA411 resin.