Nsonsonoe titiriw a ɛda silica a ɛtɔ gu fam ne silica a ayɛ fufuo ntam no da abɔde nketenkete no kɛse ne ne ahotew mu.
Mpɛn pii no, silica a ɛtɔ gu fam no wɔ micrometer level, bere a fumed silica no taa yɛ nanometer level. Precipitated silica wɔ efĩ a ɛdɔɔso ne ahotew a ɛtaa ba bɛyɛ 93%, bere a fumed silica wɔ efĩ a ɛba fam koraa ne ahotew a ebetumi adu 99%. Esiane nsonsonoe titiriw a ɛwɔ abɔde nketenkete no kɛse ne ahotew mu nti, fumed silica di silica a ɛtɔ gu fam wɔ thickening, thixotropic, anti-settling, reinforcing, matting ne friction resistance.