Most commonly, the caffeine is in coffee, tea, soft drinks, and chocolate. This adds up to an average of about 280 mg of caffeine per day, or the equivalent of about two cups of coffee.
Wait 30 Days. New concrete should cure for at least 30 days before being painted, according to Sherwin-Williams. However, even if that time frame has passed, the paint company recommends testing for moisture.Do this by duct taping a 2-foot-by-2-foot piece of plastic to the floor or wall.t's wise to let concrete cure for 60 days before painting, according to the Valspar paint company. After the concrete dries, Valspar and Sherwin Williams both say you should acid etch the concrete so paint will adhere to it.
New and Uncoated Concrete or Masonry Surfaces: 1  New concrete must cure for a minimum of 30 days. 2  For proper penetration and adhesion of topcoat, use a product such as BEHR PREMIUM Â® Concrete & Masonry Cleaner and Etcher No. 991 to clean and etch the surface. 3  Remove mildew stains with a mildew stain removing product.