EVONIK CORPORATION › AERODISP® WK 341 AERODISP® WK 341 $0.00 AERODISP® WK 341 an aqueous dispersion of a fumed silica and a fumed mixed oxide with a high solids content and a positive zetapotential. Quantity: Add To Cart Added! AERODISP® WK 341 an aqueous dispersion of a fumed silica and a fumed mixed oxide with a high solids content and a positive zetapotential. You Might Also Like AERODISP® W 1714 AERODISP® W 7512 S AERODISP® W 7622 AERODISP® W 7520