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

Evonik Ultrasil 880 Precipitated Silica

Evonik Ultrasil 880 is original German imported precipitated silica with calcium silicate. It features medium reinforcement, low BET surface area, excellent extrusion, low die swell, smooth surface and low compression set, partially replacing titanium dioxide.


Features Of Evonik Ultrasil 880 Precipitated Silica

  1. Excellent extrusion – low die swell, smooth surface for precision profiles

  2. Low compression set – better resilience and sealing durability

  3. Easy high-filler processing – works well in highly filled EPDM

  4. Titanium dioxide partial replacement – cost-efficient for white compounds

  5. Mild cure impact – stable sulfur vulcanization

Typical Applications Of Evonik Ultrasil 880 Precipitated Silica

  1. Rubber extruded profiles – seals, trims, tubes

  2. EPDM products – automotive seals, construction seals

  3. White rubber goods – partial TiO₂ replacement

  4. Industrial mechanical rubber parts – damping, wear components

  5. High-filled rubber compounds – cost-effective processing

Specifications Of Evonik Ultrasil 880 Precipitated Silica

BrandEvonik (Original German)
Product TypePrecipitated Silica (with calcium silicate)
AppearanceWhite powder
BET Surface Area~35 m²/g
SiO₂ Content≥98%
pH Value5.5–7.5
Loss on Drying≤7.0%
CAS No.1344-95-2


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