FUMED SILICA.tech
SEMITECH · SILICA & MATTING

SEMISIL S8-150 (AEROSIL® R 805 equivalent)

Long C8 chain, excellent skin feel. BET 125–175 m²/g.

BET: 125–175 m²/gpH: 3.5–5.5SiO₂ ≥ 99.8%CAS 112945-52-5

Typical Applications

CosmeticsPersonal careCoatingsAdhesives

SEMISIL S8-150 (equivalent to AEROSIL® R 805) is a high-performance octylsilane (c8) treated fumed silica manufactured by SEMITECH. Long C8 chain, excellent skin feel. With a BET surface area of 125–175 m²/g, SEMISIL R805 delivers precise rheology control and reinforcement across demanding industrial formulations.

Quick Profile

  • Surface Area (BET): 125–175 m²/g
  • Surface Treatment: Octylsilane (C8) treated
  • Carbon Content: 4.5–6.5%
  • pH (4% dispersion): 3.5–5.5
  • Composition: SiO₂ ≥ 99.8%
  • CAS Number: 112945-52-5
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Industries & Applications

- Cosmetics - Personal care - Coatings - Adhesives

  • Cosmetics
  • Personal care
  • Coatings
  • Adhesives
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Why Choose SEMISIL R805

- 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

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Free 1 kg sample for qualified buyers. Factory-direct pricing. 48h dispatch from Anhui R&D center.

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