Resin beads are fabricated from an organic polymer substrate – often polystyrene sulfonate. They are small (0.5-1mm diameter) and typically porous, providing a high surface area. These beads are used to either exchange positive ions (cations) or negative ions (anions) such as the example below of a softening resin bead exchange process.

Commonly Used To Reduce...

  • Hardness
  • Ions
  • Salts
  • Heavy metals
  • Nitrate
  • Iron

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