The use of glass cladding is about to be revolutionised with the introduction of Pilkington Planar Activ. It combines the design capabilities of a glazing system with the company's revolutionary dual action self-cleaning glass. Uncompromising design is now possible where previously, use of large glass areas may have been restricted by maintenance and cleaning access issues. Planar Activ works with Pilkington Activ, which was introduced 4 years ago. The glass has a permanent coating that uses natural elements to continuously clean the surface of the glass. Traditionally, large expanses of glass have created significant cleaning problems. Now, after 3 years of development, a breakthrough in sealant technology has enabled Planar Active to reach the market. A range of silicone-free seals became available.