National Shield Extreme Silk is an infrared (IR) heat reflective 100% pure acrylic exterior water based topcoat, to withstand the harsh tropical weather condition. It is formulated with excellent UV protected colours and allows the colours to stay true for a longer period of time. It reflects the heat-producing region of the infrared radiation ranges in sunlight, by its temperature reduction technology. It protects concrete from carbonation (anti carbonation coating) and remains protected from algae and fungus. It offers moisture barrier and vapour permeable properties with very low dirt pick up. It has low VOC and is highly washable. It is free from any harmful chemicals. It contains anti fungal and anti bacterial additives.