Westco™ PPT Silica 150 P/G Silica CAS#

Westco PPT Silica 150 is an amorphous, precipitated anhydrus silica.  It is used in rubber compounds as a reinforcing agent to increase tensile and tear strength as well as resistance to abrasion.  It is available in two forms, powder (Silica 150) and granular (Silica 150G).

Standard Package:  Silica 150 – 20 kg plastic lined paper bag; Silica 150G – 25 kg plastic lined paper bag.  Custom packaging is available upon request

*Actual data will be reported on Certificate of Analysis





Powder (150) or Granules (150G)

*Surface area (BET) m²/g

140 - 160

*Drying loss (150°C), %

4.0 - 8.0


6.0 - 7.5

*Assay, % min. silica


*Sodium sulfate content, % max.


DBP Absorption, cm³/100g

200 - 300

Sieve Residue, max. 45 um


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      • 60 S. Seiberling Street
      • Akron, OH 44305

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