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

Evonik Sipernat 325E Hydrophilic Precipitation Silica

Sipernat 325E is an ultra-fine milled hydrophilic precipitated silica imported from Germany by Evonik. It features high absorption capacity and stable surface area, specially designed for batteries, carrier, anti-blocking and adhesive systems with excellent dispersion and stable processing.

Features Of Evonik Sipernat 325E Hydrophilic Precipitation Silica

  1. High absorption & loading capacity - Large liquid loading, high carrier efficiency

  2. Uniform particle & easy dispersion - No agglomeration, fit for high-speed lines

  3. Efficient anti-blocking - Good film opening, no transparency loss

  4. Special for battery separators - Uniform pores, better permeability & strength

  5. High purity & inert - Wide compatibility, ideal catalyst binder & carrier

Typical Applications Of Evonik Sipernat 325E Hydrophilic Precipitation Silica

  1. PE/PP separators for lead-acid batteries - Pore former & size regulator

  2. Polyolefin & PVC film - Anti-blocking & opening agent

  3. Powder functional carrier - Liquid loading & anti-caking

  4. Adhesives & sealants - Thickening, reinforcing, rheology control

  5. Heterogeneous catalyst - Binder & carrier material

Specifications Of Evonik Sipernat 325E Hydrophilic Precipitation Silica

BrandSipernat (Evonik Germany)
Product TypeHydrophilic precipitated silica
AppearanceWhite ultra-fine powder
BET Surface Area115–145 m²/g
DOA Absorption220–250 ml/100g
Loss on Drying≤6.0 wt%
pH Value6.0–8.0
SiO₂ Content≥98 wt%
CAS No.112926-006


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