FUMED SILICA.tech
SEMITECH · SILICA & MATTING

SEMISIL D170 (AEROSIL® R 974 equivalent)

BET 150–190 m²/g.

BET: 150–190 m²/gpH: 3.7–4.7SiO₂ ≥ 99.8%CAS 112945-52-5

Typical Applications

CoatingsAdhesivesEpoxyStrong rheology

SEMISIL D170 (equivalent to AEROSIL® R 974) is a high-performance dds (dimethyldichlorosilane) treated fumed silica manufactured by SEMITECH. With a BET surface area of 150–190 m²/g, SEMISIL R974 delivers precise rheology control and reinforcement across demanding industrial formulations.

Quick Profile

  • Surface Area (BET): 150–190 m²/g
  • Surface Treatment: DDS (Dimethyldichlorosilane) treated
  • Carbon Content: 0.7–1.3%
  • pH (4% dispersion): 3.7–4.7
  • Composition: SiO₂ ≥ 99.8%
  • CAS Number: 112945-52-5
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Industries & Applications

- Coatings - Adhesives - Epoxy - Strong rheology

  • Coatings
  • Adhesives
  • Epoxy
  • Strong rheology
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Why Choose SEMISIL R974

- Factory-direct pricing — 20–40% cost advantage vs. European manufacturers - Consistent quality — ISO 9001 certified,…

  • Factory-direct pricing — 20–40% cost advantage vs. European manufacturers
  • Consistent quality — ISO 9001 certified, full CoA with every shipment
  • Technical support — formulation assistance and application testing
  • Flexible supply — from 25 kg sample drums to 20-ton container loads, 2–4 week lead time
TDS (Technical Data Sheet)SDS (Safety Data Sheet)

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