Felite™ FA225 is a gel-type strong base anion exchange resin containing Type II quaternary ammonium groups. It has high capacity, high chemical efficiency and good resistance to fouling, and is intended for use in the chloride form for removal of contaminants such as nitrate, arsenate, chromate, uranium, etc., as well as in the hydroxide form for all types of deionizing systems.

Felite™ FA225 in the hydroxide form is especially well suited for use for systems where amine odors might be objectionable.

Principal Application:
Demineralization (Industrial & Electrical Discharge Machining);
Potable Water Grade is available when ordered as Felite™ FA225-P;

typical physical & chemical characteristics:

Polymer Structure

Styrene/DVB, Gel


Spherical Beads

Functional Group

Type II Quaternary Ammonium

Ionic form, as shipped


Total Capacity (mmol/ml)

1.3 min. (Cl-)

Moisture Retention

45 - 51%

Particle Size Range (mm)

0.3 - 1.2

(≤0.3mm, 1% max.; >1.2mm, 5% max.)

Uniformity Coefficient (max.)


Reversible Swelling, Cl- → OH- (max.)


Shipping Weight (g/L, approx.)

680 - 715 (42 lb/ft3)

Specific Gravity


Temperature Limit

85℃ (185°F)

Stability, pH Range

0 - 14

Felite™ Resin

Felite™ FA225, Strong Base Anion Resin, Gel, Type II

Strong Base Anion, Gel
Type II
Standard Mesh
Cl- form

WQA Gold Seal

Certified by the WQA to NSF/ANSI-61 Standard


Felite™ Resin 25L Package

25 Litres / 1 cu.ft PE Bag;
48 / 42 Bags Per Pallet;
20 Pallets Per 20’ Container

Felite™ Resin Package Pallet

1 Jumbo Bag Per Pallet;
20 Pallets Per 20’ Container

Felite™ Resin Jumbo Bag

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