ResinTech CG8 is a sodium form 8% crosslinked gel strong acid cation resin. CG8 is a workhorse cation resin optimized for industrial and residential applications that require good regeneration efficiency and oxidative stability. ResinTech CG8 is intended for use in all industrial and commercial softening applications, as well as residential applications that have moderate amounts of chlorine in the feedwater. CG8-H is intended for use in demineralizers and in mixed beds. CG8 is available in the sodium or hydrogen form (when ordered as CG8-H). 


NSF/ANSI-61 Certified for Material Safety
WQA Gold Seal Certified when ordered as CG8-HP 


Polymer StructureStyrene/DVB
Polymer TypeGel
Functional GroupSulfonic Acid
Physical FormSpherical Beads
Ionic Form (as shipped)Sodium or Hydrogen
Total capacity> 1.8 meq/mL (H Form) / > 1.9 meq/mL (Na Form)
Water Retention47 to 56 percent (H Form) / 42 to 49 percent (Na Form)
Approximate Shipping Weight          50 lbs/cu.ft. (H Form) / 51 lbs/cu.ft. (Na Form)
Swelling5 to 9 percent Na to H
Screen Size Distribution 16 to 50 (U.S. Mesh)
Maximum Fines Content1 percent (less than 50 Mesh)
Minimum Sphericity93 percent
Uniformity Coefficient1.6 (Approximate)
Resin ColorAmber

All resin/carbon purchases processed via this website will be samples only, packaged in 16oz. plastic jars.
For larger quantities please email

NOTE: Weights reflect an average packout weight over time. Actual weights may vary by +/- 1 lb.

Please allow up to 5 business days from the date of your order for processing. After processing is complete, your order will be shipped out according to the shipping option you chose when ordering. For orders being shipped outside of the USA, please allow 4 weeks due to possible delays through customs.

View Data SheetSDS File

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