Pilkington K Glass™ S is our latest high performance, low-emissivity soft coated product which offers excellent thermal insulation when incorporated within an Insulating Glass Unit (IGU). It has a highly neutral appearance with optimal solar heat gain, thermal insulation and light transmission to provide the highest Window Energy Rating (WER ...

Making use of the Pilkington K Glass™ range in your home can help to keep your rooms cosy all year round.

It is now called Pilkington Optitherm™. (See Product Data Sheet) is the old name for our highest performance low emissivity glass. It is an off-line coated glass. It is now called Pilkington Optitherm™ S (See Product Data Sheet) Pilkington K Glass™ is the brand name for our pyrolitic coated low emissivity glass.