Spec Sheet — SEMISIL H100 vs Evonik 100
Both are matting agents based on treated fumed silica. Specs come from each supplier’s published TDS — use them as a starting point and confirm against the COA for your specific lot.
| Property | SEMISIL H100 | Evonik ACEMATT® TS 100 |
|---|---|---|
| Chemistry | Treated fumed silica | Treated fumed silica |
| BET surface area | 230 – 270 m²/g | ~200 m²/g |
| Particle size (d₅₀) | 8.0 – 11.0 µm | ~9 µm |
| Oil absorption | 300 – 380 g/100 g | ~270 g/100 g |
| SiO₂ content | ≥ 99.0 Wt% | ≥ 98 % |
| pH (5% aqueous) | 6.0 – 9.0 | — |
| LoD (105 °C) | ≤ 5.0 Wt% (2 h @ 105 °C) | typically ≤ 5% |
Industry workhorse matting agent for solventborne, waterborne, and PU coatings. Originated as the Degussa TS 100 grade.
Why Formulators Cross-Trial SEMISIL H100
- Higher BET (230 – 270 m²/g) than Evonik ACEMATT® TS 100 (~200 m²/g) — typically permits a 10 – 20% lower treat rate for the same gloss target.
- Higher oil absorption (300 – 380 g/100 g) — better matting efficiency per gram in solventborne and PU systems.
- Same particle range (8 – 11 µm d₅₀) — no rework of viscosity build, no settling-rate change.
- Untreated high-purity base (SiO₂ ≥ 99%) — clean dispersion in waterborne without conductivity spikes.
- 5-day sample turnaround from MINMETALS EAST China — vs typical 3 – 4 week sample lead-time from EU stock.
Where Evonik ACEMATT® TS 100 Still Wins
- Established regulatory dossiers — Evonik has 30+ years of global cosmetic, pharma, and food-contact dossier coverage; H100 covers REACH + standard FDA but specialty approvals on request.
- Brand-trust in OEM specifications — major automotive OEMs name Evonik grades by part number. H100 is a generic-spec qualified alternative for these.
- Larger global distributor network — Evonik ships ex-Europe with 24 – 48h availability across distributors. H100 is direct-from-China.
Frequently Asked Questions
+Is SEMISIL H100 a drop-in replacement for Evonik ACEMATT® TS 100?
In most coating formulations: yes. Particle size and BET overlap meaningfully, and chemistry class is the same (treated fumed silica). Formulators report a treat-rate swap within ±20% of the Evonik grade. Always run a parallel batch test before lock-in.
+What’s the price difference?
SEMISIL H100 is supplied direct from Chinese manufacture (HMMAT®, MINMETALS EAST). Pricing typically lands 30 – 45% below Evonik’s landed cost into Asia and the Americas. Exact quote depends on volume and Incoterms.
+How is supply continuity vs Evonik?
MINMETALS EAST holds 2 – 3 months of buffer inventory on H100 to cover Chinese New Year and typical ocean-freight lead-time. Evonik’s European production has had occasional allocation pressure since 2022.
+Can I get samples for evaluation?
Yes — 5 kg evaluation pack ships within 5 business days (FCA Shanghai). Request via the form below.
+Does SEMISIL H100 carry the same regulatory listings as Evonik ACEMATT® TS 100?
H100 is registered under standard silica CAS 7631-86-9 with surface modification reported. It is REACH-registered and meets typical food-contact (FDA 21 CFR 175.300 for the inert silica fraction) requirements when used within recommended dosages. Specific approvals (cosmetic, pharma) should be requested for your end use.
+Which is better for waterborne coatings?
SEMISIL H100’s untreated-base structure disperses cleanly in waterborne PU and acrylic without conductivity issues. Evonik ACEMATT® TS 100 performs comparably but may require slightly higher dosage in waterborne for the same gloss target.