Classidur have developed a patented system know as Catonic Technology. This technology creates an impermeable barrier stopping stains from coming through the coating.
Other advantages are that Classidur are able to offer zero tension that significantly reduces the chance of the paint from flaking, peeling and even blistering. Available in water based the Classidur Aquaclassic or Superclassic all offer the highest quality most effective stain blocking available.