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

Tosoh Nipsil E-74P Reinforcing Agent

Tosoh Nipsil E-74P is a high-purity silica reinforcing agent from Tosoh’s Nipsil series, engineered for premium rubber compounding. It delivers exceptional dispersion, abrasion resistance, and tensile strength in high-performance tires and industrial elastomers. Its optimized surface chemistry ensures superior filler-rubber interaction and low heat buildup. Widely trusted in premium automotive and specialty rubber applications globally.
  • tosoh nipsil e 74p reinforcing agent_7701bcc4
  • tosoh nipsil e 74p reinforcing agent_7701bcc4

Features Of Tosoh Nipsil E-74P Reinforcing Agent

  1. Highly dispersible fumed silica with optimized surface treatment for enhanced polymer compatibility.

  2. Provides excellent reinforcement and viscosity control in liquid silicone rubber (LSR) formulations.

  3. Delivers superior mechanical strength, tear resistance, and dimensional stability after curing.

  4. Low abrasivity minimizes wear on processing equipment during high-shear mixing.

  5. Consistent batch-to-batch performance ensured by Tosoh’s stringent quality control and GMP-compliant manufacturing.

Typical Applications Of Tosoh Nipsil E-74P Reinforcing Agent

  1. Reinforcement of platinum-cured liquid silicone rubber (LSR) for medical devices.

  2. High-clarity optical LSR used in LED encapsulation and light-diffusing components.

  3. Food-grade and pharmaceutical-grade silicone elastomers requiring FDA-compliant fillers.

  4. Precision-molded automotive gaskets and seals demanding low compression set and thermal resilience.

Specifications Of Tosoh Nipsil E-74P Reinforcing Agent

Chemical TypeFumed silica, surface-treated with dimethyldichlorosilane
Product FormFree-flowing white powder
AppearanceWhite, odorless, amorphous powder
BET Surface Area~70 m²/g (as per ASTM D3037)
Density (Loose)~40–60 g/L
pH (4% aqueous slurry)3.5–5.0
Moisture Content≤1.5 wt% (at 105°C, 2 hrs)
Primary ApplicationsReinforcing filler for addition-cure LSR systems


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