FUMED SILICA.tech
SEMITECH · SILICA & MATTING

SEMISIL H100

Surface-treated fumed silica engineered for matting in coatings — a direct alternative to Evonik ACEMATT TS 100, with high oil absorption (300–380 g/100 g) for efficient gloss reduction.

BET: 230 ~ 270 m²/gpH: 6.0 ~ 9.0SiO₂ ≥ 99% SiO₂

Typical Applications

Wood coatingsUV coatingsSolvent-borne coatingsMatte finishes
+ Expand

Surface-Treated Fumed Silica Built for Matting

SEMISIL H100 shares the same fumed-process base as standard fumed silica, but its surface is treated specifically for…

SEMISIL H100 shares the same fumed-process base as standard fumed silica, but its surface is treated specifically for matting performance in coatings rather than thixotropic rheology. The result is efficient, haze-free gloss reduction at low loadings — a cost-effective drop-in alternative to Evonik ACEMATT TS 100.

High Oil Absorption

Oil absorption of 300–380 g/100 g delivers strong matting efficiency, so target gloss is reached at lower addition rates.

Fine, Uniform Particle Size

A d50 of 8.0–11.0 µm produces a smooth, even matte surface without the gritty texture of coarser fillers.

High Surface Area

BET 230–270 m²/g gives the structure needed for consistent micro-roughness across solventborne and UV systems.

Clean Chemistry

SiO₂ ≥ 99%, pH 6–9 — compatible with a wide range of resin systems and low in ionic contaminants.

TDS: SEMISIL H100 Specifications

PropertyStandard ValueMethod
BET Surface Area230 ~ 270 m²/gISO 9277
Oil Absorption300 ~ 380 g/100 gHG/T 4526-2013
Average Particle Size (D50)8.0 ~ 11.0 µmLaser Diffraction
SiO₂ Content≥ 99%Gravimetric
pH Value (5% Suspension)6.0 ~ 9.0ISO 787-9
+ Expand

How H100 Fits in the SEMISIL Portfolio

Standard SEMISIL fumed silica grades (150–380 m²/g) target thixotropic rheology in sealants, adhesives, and silicone…

Standard SEMISIL fumed silica grades (150–380 m²/g) target thixotropic rheology in sealants, adhesives, and silicone systems. H100 is the matting specialist: same fumed-process base, but surface-treated to scatter light and cut gloss in coatings. If your application is sealant or adhesive rheology, choose a hydrophilic SEMISIL grade; if it is matting in wood, UV, or solventborne coatings, H100 is the right pick.

Technical FAQ

What is SEMISIL H100 used for?

SEMISIL H100 is a surface-treated fumed silica matting agent for coatings — wood coatings, UV-curable topcoats, and solventborne systems where a smooth, durable matte finish is required without sacrificing transparency.

Which Evonik grade is SEMISIL H100 comparable to?

SEMISIL H100 is positioned as a direct alternative to Evonik ACEMATT TS 100, matching its high-oil-absorption, fumed-silica matting profile.

How much SEMISIL H100 should I add?

Loading depends on target gloss and binder, but the high oil absorption (300–380 g/100 g) means effective matting is typically reached at lower addition rates than coarser precipitated-silica matting agents. Start low and adjust to your gloss target.

Request a Sample or Quote

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

Free samples for qualified buyers · Reply within 24h