Tuff-Boy 990 Oil-Base Dry Fall Flat is a high hiding coating designed for interior application via conventional or airless spray equipment only. This quick drying coating will whiten and brighten dark ceilings and reduce lighting requirements. Tuff-Boy 990 is ideal for commercial and industrial areas where dry overspray characteristics are desired. Overspray from Tuff-Boy 990 does not stick, but falls to the floor as a dry dust which may be swept up without damaging the surfaces on which it has fallen.