Pilkington Optitherm™ S1 Plus. Pilkington Optitherm™ S1 Plus is the latest in our low-e range offering ultra low-emissivity and achieving a Ug-value of only 1.0 W/m 2 K when incorporated in a double glazed IGU. It is a single stock product hence can be used for annealed, laminated and toughened applications being toughened after processing.

Our latest and best performing, low-emissivity soft coated version of Pilkington K Glass™ helps to achieve the top WER band for windows in homes. Pilkington Optitherm™ S1 Plus. Pilkington Optitherm™ S1 Plus is an off-line coated, single stock product, offering superior thermal insulation performance with Ug-value of 1.0. Pilkington ...

Helps windows achieve higher Window Energy Ratings (dependant on frame type) Helps save money on heating bills through energy saving. Pilkington K Glass™ S. Optimised for Window Energy Ratings. Low U value (high thermal insulation) High light transmission. Pilkington Optitherm™ S1 Plus.

Pilkington Optifloat™ Opal is a popular glass that sits within our Pilkington Oriel Collection - our premium etched range. An acid-etched product suitable for internal or external use, it creates an attractive finish for windows, partition walls, glass doors, furniture, shelving, wall cladding and many more applications.