Matting agents, flatting agents or gloss control additives are introduced into surface coatings to produce finishes with reduced gloss and light reflection. The old method of obtaining a matt surface with a powdered abrasive or sandpaper is time consuming and inconvenient; the use of matting agents on a wide variety of substrates has consequently grown during the past decade. Matt surfaces are specified for many reasons: the reduced glare of surfaces in schools, hospitals and universities offers less chance of visual distraction and concentration is better in such environments; such finishes show less tendency to become unsightly as time progresses, as small scratches and imperfections are less obvious than on gloss surfaces; satisfactory surfaces from the visual point of view can be produced on wood using fewer coats of lacquer than for gloss surfaces; and matt finishes have become fashionable with architects and designers.