Name: SEMISIL M220 (AEROSIL® R 812 S equivalent)
Brand: SEMITECH

Typical Applications

Toner (negative charge)Cosmetics

SEMISIL M220 (equivalent to AEROSIL® R 812 S) is a high-performance hmds (hexamethyldisilazane) treated fumed silica manufactured by SEMITECH. Based on AEROSIL 300. With a BET surface area of 195–245 m²/g, SEMISIL R812S delivers precise rheology control and reinforcement across demanding industrial formulations.

Quick Profile

Surface Area (BET): 195–245 m²/g
Surface Treatment: HMDS (Hexamethyldisilazane) treated
Carbon Content: 3.0–4.0%
pH (4% dispersion): 5.5–7.5
Composition: SiO₂ ≥ 99.8%
CAS Number: 112945-52-5

+ Expand

Industries & Applications

- Toner (negative charge) - Cosmetics

Toner (negative charge)
Cosmetics

+ Expand

Why Choose SEMISIL R812S

- 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

Request a Sample or Quote

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