SEMISIL H100 Fumed Silica Matting Agent
CAS Number: 112945-52-5
SEMISIL H100 is a surface-treated fumed silica matting agent engineered as a direct alternative to Evonik ACEMATT TS 100 and Cabot/Grace equivalents. BET surface area 230-270 m²/g, oil absorption 300-380 g/100g, and SiO₂ ≥99% deliver high matting efficiency with exceptional transparency in waterborne, PU, wood, PVC, ink, and powder coating systems. Supplied direct from MINMETALS EAST (Henan, China).
Technical Specifications
| appearance | White fluffy powder |
| SiO2 content | ≥ 99.0 wt% |
| oil absorption | 300-380 g/100g |
| BET surface area | 230-270 m²/g |
| fineness of grind | ≤ 40 µm |
| particle size (d50) | 8-11 µm |
| pH value (5% aqueous) | 6.0-9.0 |
| loss on drying (105°C, 2h) | ≤ 5.0 wt% |
| loss on ignition (1000°C, 2h) | ≤ 10.0 wt% |
Applications
- Waterborne and 2K PU coatings — high transparency without conductivity issues
- Premium wood coatings (PU, NC, UV, waterborne topcoats) — preserves grain visibility
- PVC coatings and plastisols — chemical compatibility with PVC resin
- Printing inks (offset OPV, screen ink, overprint varnish) — controlled matting in clear inks
- Powder coatings — pure SiO₂ prevents migration during melt flow
- UV-curable coatings — no UV absorption interference with photo-initiators
Key Features
- Direct alternative to Evonik ACEMATT TS 100 at 30-45% lower landed cost from China
- Higher BET surface area (230-270 vs ~200 m²/g for ACEMATT TS 100) — typically permits 10-20% lower treat rate for same gloss target
- Higher oil absorption (300-380 vs ~270 g/100g) — better matting efficiency per gram
- Same particle size range as legacy grades (8-11 µm) — clean drop-in for existing formulations
- 5-day sample turnaround FCA Shanghai; 2-3 months of buffer stock at MINMETALS EAST
Grade Variants & Supplier Reference
Specific grades available from leading Chinese-market suppliers. Spec sheets and lead-time vary per grade — request a quote to confirm availability.
| BET | 230-270 m²/g |
| SiO2 | ≥99.0 wt% |
| oil absorption | 300-380 g/100g |
| particle size (d50) | 8-11 µm |
Flagship Chinese-market fumed silica matting agent; positioned as direct ACEMATT TS 100 alternative.
View on supplier site →Big 4 Equivalents Cross-Reference
Approximate functional equivalents from leading global matting agent suppliers. Particle size and BET overlap meaningfully — formulators typically achieve drop-in replacement within ±20% treat rate adjustment. Verify against the supplier TDS before formulation lock-in.
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CAS Number
112945-52-5
Category
Anti-Corrosion / FunctionalAvailability
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