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NALCO™ 2358

Colloidal silica slurry

Colloidal silica for stock removal on silicon:
NALCO™ 2358 is a colloidal silica polishing slurry specifically formulated as a next generation replacement to the NALCO™ 2350. It contains lower metals than 2350 and typically yields a 10-15% higher removal rate. This is espcially effective on silicon surfaces due to temperature sensitive amine which activates at 40 degrees celsius.


Base material  Colloidal silica

Shelf life  24 months

Packaging  Standard packaging comes in two sizes: 5 gallon, and 55 gallon. Standard totes also come in two sizes: 264 gallon and 330 gallon. These totes are rigid, virgin, HDPE vessels in an aluminum cage overpack. The openings are six-inch buttress with a two-inch NPT bung with a bottom drain. They can accept dip tubes or other commercially available dispense systems.

Applications  Silicon

Similar products

  NALCO™ 2350 NALCO™ 2360 NALCO™ 2358 NALCO™ 2371 NALCO™ 2329
Base material Colloidal silica Colloidal silica Colloidal silica Colloidal silica Colloidal silica
Particle size (µm) 0.06 0.06 0.07 0.07 0.075
pH 11.0 8.5 12.0 11.8 8.4
Solids content 50 50 28 28 40
Specific gravity 1.39 1.39 1.19 1.19 1.29


For more detailed information, download our datasheet:

Interested in our colloidal silica slurries?


We are happy to share our knowledge with you and remain at your disposal for any further questions.

Adam Nielsen

Product Manager Colloidal Silica Slurries