Choose the right grade for your application and system.
Select By Application
Match any formulation challenge to the right SEMISIL grade and loading level in one lookup — covering 30 application categories across coatings, adhesives…
Select By Bet Surface Area
BET surface area is the single most important parameter for matching a fumed silica grade to your formulation target — from basic thickening at 150 m²/g to…
Select By Cure System Compatibility
Surface hydroxyl density and treatment chemistry determine whether fumed silica accelerates, retards, or poisons your cure — this guide matches grades to five…
Select By Regulatory Needs
A regulatory-first selection framework for fumed silica grades spanning FDA 21 CFR, USP/NF, EP, and REACH compliance across the SEMISIL portfolio.
Select By Surface Chemistry
Match fumed silica surface chemistry to your formulation solvent system, moisture sensitivity, and rheology targets.
Select By Treatment Method
Selecting the right surface treatment — HMDS, DDS, or PDMS — determines dispersion behavior, cure compatibility, and final cost of your fumed silica…
Select By Viscosity Target
Match fumed silica grade and loading level to your exact viscosity target — from light anti-settling at 1% to structural anti-sag putty at 12%.
Select For Clear Systems
Selecting the right fumed silica grade for transparent formulations depends on refractive index matching, primary particle size, and dispersion quality.
Select For Cost Vs Performance
Precipitated silica costs 60–70% less per kg than fumed grades, but performance gaps in transparency, thixotropy index, and particle control limit…
Select For Defoamer Applications
Selecting the right hydrophobic fumed silica grade determines defoamer persistence, redispersion stability, and cost efficiency across aqueous and non-aqueous…
Select For Low Loading Formulations
When total filler loading must stay below 2%, grade selection determines whether you get adequate rheology control or waste material and reformulation cycles.
Selection Guide
A decision-tree framework for matching fumed silica grades to formulation requirements based on BET, surface chemistry, and end-use performance targets.