Valspar professional exterior flat is a 100% acrylic, professional quality, exterior latex paint developed to provide outstanding durability, fade resistance and mildew resistance. It can be applied at temperatures as low as 35 deg F allowing you to extend the painting season. Professional exterior flat provides a smooth, uniform finish with spray, brush or roller application and can be applied to a variety of exterior surfaces - wood and metal siding, trim including hardboard, fiber cement board, vinyl, shakes, primed metal, brick, cement, cinder block and stucco.