Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Evonik Sipernat 186 Precipitation Silica

Sipernat 186 is a medium particle size and medium absorption precipitated silica imported from Germany. It is designed for silicone rubber reinforcement and special carriers, improving mechanical strength and stabilizing viscosity of HTV, LSR and RTV-2C with good dispersibility.

Features Of Evonik Sipernat 186 Precipitation Silica

  1. Medium particle & absorption:Balanced properties for versatile use

  2. Silicone rubber reinforcement:Greatly improves mechanical strength

  3. Viscosity stabilization:Stable viscosity & longer processing window

  4. Excellent dispersibility:Easy mixing, smooth surface finish

  5. Reliable carrier:Suitable for specialty formulation carrier

Typical Applications Of Evonik Sipernat 186 Precipitation Silica

  1. HTV silicone rubber:Reinforcement, wear resistance, viscosity control

  2. LSR silicone rubber:Improved mechanical & molding properties

  3. RTV-2C silicone rubber:Strength enhancement & longer pot life

  4. Specialty carrier:Active ingredient carrier in various industries

Specifications Of Evonik Sipernat 186 Precipitation Silica

BrandSipernat (Evonik Germany)
Product TypeHydrophilic precipitated silica
AppearanceWhite powder
BET Surface Area160–200 m²/g
Median Particle D5010–14 μm
Oil Absorption180–220 ml/100g
pH Value6.0–8.0
Loss on Drying≤7.0 wt%
SiO₂ Content≥98%
CAS No.112926-00-8


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