Can Pilkington K Glass be used in single glazing or secondary glazing?
Yes. Single Glazing The coating on Pilkington K Glass™ is very hard and is difficult to scratch. Unfortunately, it is slightly rough (although not in a visible sense), so it may collect marks and dirt in a way which is difficult to clean off. It is inadvisable to use it as single glazing for this reason with the Pilkington K Glass coating to the exterior*. If Pilkington K Glass™ is used in single glazing with the coating facing the room, it may also promote the formation of condensation. This is because the coating acts as a barrier to heat, keeping the glass colder than ordinary single glazing. Because the surface is colder, condensation will form more readily and in larger quantities than on ordinary single glazing. The only circumstances where Pilkington K Glass™ would not generally promote condensation on the room surface is when the external temperature is always higher then the room temperature. This can occur if the room is a cold store, or if the building is in the tropics. *No
