14SiSILICONZEMSIL®

ZEMSIL PS-SK

Coupsil 8113

Pre-Silanized Precipitated Silica (One-Step Tire Grade)

CAS 7631-86-9

Also equivalent to: Zeosil HRS 1200MP

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~165

m²/g

BET Surface

~6

%

Silane Loading

~89

%

SiO₂ Content

~2-3

%

Carbon Content

Specifications

PropertyValueUnit
BET Surface Area165 ± 15m²/g
Silane content~5-7%
SiO₂ (dry basis)~89%
Carbon content~2-3%
Moisture (105°C, 2h)≤7%
pH (5% suspension)6.0–7.5

Applications

Green tire tread (one-step mixing)EV tiresSimplified rubber compounding

Key Features

  • Pre-silanized — eliminates separate silane addition in tire compounding
  • Reduces VOC emissions during mixing; Equivalent to Coupsil 8113
  • One-step processing lowers energy cost

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