SYLOID 161 Matting Agent is an organically treated amorphous synthetic silica appearing as a white, free-flowing powder. This silica is a wax-treated matting, or gloss control agent designed for use in: general purpose OEM and DIY wood finishes, catalyzed varnishes (alkyd-urea, alkyd-amino, etc.), decorative enamels, both air-dry and forced-dry, DIY alkyd and urethane varnishes, general industrial coatings and UV curable coatings.