DURASHIELD 100% Acrylic Exterior Latex Semi-Gloss is a next generation ultra-premium acrylic latex paint recommended to protect and beautify various architectural surfaces in commercial, residential, and institutional applications. The 3400 Line is formulated to have excellent flexibility and exceptional resistance to cracking and blistering. This product also features outstanding adhesion, color & gloss retention, block resistance, and hiding. This mildew and algae resistant¹ product may be applied over properly prepared or previously painted wood siding, hardboard,ferrous or galvanized metals, aluminum siding, brick, stucco, concrete or other masonry surfaces. The semi-gloss finish will greatly minimize dirt pick-up, which will help buildings keep a new, fresh painted look. For most repaint work, the 3400 Line may be applied directly to previously painted exterior surfaces in sound condition which have previously been painted with acrylic based paints.