Sandtex Microseal smooth masonry paint offers long-lasting protection with its dirt-resistant, breathable, and waterproof formula. With 15 years of proven durability, it's ideal for exterior walls, sills, posts, and steps. Suitable for various surfaces including block, brick, concrete, pebble-dash, render, and roughcast. Apply with a masonry brush, roller, or airless spray, ensuring there's no risk of rain or frost, and temperatures are above 8 degrees. Choose products with lower solvent levels to control air pollutants.