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

Evonik Sipernat 325AP Precipitation Silica

Sipernat 325AP is an ultra-fine milled hydrophilic precipitated silica imported from Germany by Evonik. It features moderate surface area and absorption, specially used for battery separator pore forming, plastic anti-blocking, carrier and adhesive systems with stable processing and excellent dispersion.


Features Of Evonik Sipernat 325AP Precipitation Silica

  1. Ultra-fine uniform particle size - Uniform dispersion without agglomeration, suitable for high-speed processing

  2. Moderate surface area - Stable absorption, balanced and controllable loading & pore forming

  3. Efficient anti-blocking - Good opening for polyolefin/PVC film, no transparency loss

  4. Special pore forming for battery separators - Uniform pore size, better permeability & safety

  5. High purity & inertness - Compatible with various systems, no side reactions

Typical Applications Of Evonik Sipernat 325AP Precipitation Silica

  1. PE/PP battery separators - Pore generator & pore size regulator

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

  3. Special powder carrier - Liquid active loading & anti-caking

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

  5. Heterogeneous catalyst - Binder & carrier material

Specifications Of Evonik Sipernat 325AP Precipitation Silica

BrandSipernat (Evonik Germany)
Product TypeHydrophilic precipitated silica
AppearanceWhite ultra-fine powder
BET Surface Area115–145 m²/g
DOA Absorption200–230 ml/100g
Average Particle Size D50Ultra-fine
Loss on Drying≤6.0 wt%
pH Value6.0–8.0



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