Wind-driven rain and harsh weather conditions can quickly deteriorate coatings, creating the need for frequent touch-ups and increasing the cost of maintenance. For an economic solution that helps reduce maintenance, SherLastic 100 percent Acrylic Elastometric Coating from Sherwin-Williams: Helps bridge hairline cracks Applies smoothly by spray, brush or roll on all types of new and existing surfaces, including stucco, poured-in-place concrete and pre-cast concrete Resists efflorescence  Reduces white salt surface staining