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

Evonik Sipernat 288 Precipitation Silica

Evonik Sipernat 288 is a hydrophilic milled precipitated silica imported from Germany. Designed for silicone rubber, sealants and powder systems, it features high specific surface area and balanced absorption, efficiently reinforcing HTV/LSR/RTV‑2C, controlling rheology, and acting as carrier, anti‑caking and antiblocking agent.


Features Of Evonik Sipernat 288 Precipitation Silica

  1. High surface area reinforcement - Excellent mechanical strengthening

  2. Precise rheology control - Stabilizes viscosity and thixotropy

  3. Fine grinding & easy dispersion - Uniform particle, fast mixing

  4. Multi-purpose application - For silicone rubber, sealants, powder carrier

  5. Good processability - Non-sticky, easy demolding

Typical Applications Of Evonik Sipernat 288 Precipitation Silica

  1. HTV silicone rubber - High reinforcement & rheology stability

  2. LSR silicone rubber - Better mechanical & flow properties

  3. RTV‑2C silicone rubber - Higher strength & longer pot life

  4. Sealants & adhesives - Rheology control & anti-sagging

  5. Powder industry - Anti-caking, flow aid & liquid carrier

Specifications Of Evonik Sipernat 288 Precipitation Silica

Product TypeHydrophilic milled precipitated silica
AppearanceWhite powder
BET Surface Area175–215 m²/g
Median Particle Size D508.5–12.5 μm
Oil Absorption (DOA)210–240 mL/100g
pH Value6.0–8.0
Loss on Drying≤7.0%
SiO₂ Content≥98%


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