SGG PLANITHERM is high performance low-emissivity products, incorporating the very latest advancements in thermally insulating glass coating technology.

Renowned for its extremely neutral appearance, SGG PLANITHERM very effectively reflects long-wave heat radiation back into a room, thereby minimizing heat loss  through a window while also maximizing solar heat gain and natural light transmission.

Manufactured on SAINT-GOBAIN GLASS China’s ‘magnetron’ coater, a combination of microscopically thin multiple metal oxide layers are applied to high quality clear float glass using a magnetically enhanced catholic sputtering process under vacuum conditions.

Depending on the composition of these transparent coating layers, several different products can be produced, distinguishable by the thermal performance, spectrophotometric values and processing characteristics.


Product Application

SGG PLANITHERM is designed for use in all double glazing applications, in all frame types for both new-build and replacement markets:

-  windows and skylights in residential buildings and private domestic housing

-  conservatories and patio doors

-  windows and façades of non-residential buildings.

-  industrial freezer 



The SGG PLANITHERM range offers many features which set it apart from traditional low-E products, helping to give processors and window fabricators man added edge in an increasingly discerning and competitive market.

Enhanced Thermal Insulation

A double-glazed unit incorporating SGG PLANITHERM is up to 3 times more thermally efficient than an ordinary double-glazed unit and offers significantly better thermal insulation compared to traditional hard coated Low-E products:

-  Considerable reductions in heating bills

-  Reduces condensation on the inner pane

-  Improved comfort with less drafts and cold spots near glazed areas

-  Environmentally friendly solution, given the lower CO2 emissions associated with reduced energy consumption

-  Facilitates compliance with building regulations for a wider range of frame designs


Neutral Appearance

The Planitherm coatings are remarkably neutral in both transmission and reflection as opposed to traditional hard coated low-E products which typically have a yellow/brown tint.

Exceptional Clarity

The SGG PLANITHERM range offers a high level of light transmittance, maximizing the entry of natural daylight into the building. These types of coatings also benefit from a lack of the ‘haze effect’ commonly associated with hard coated products.



Thickness: 3mm,4mm,5mm,6mm,8mm,10mm,12mm

Max :

6mm (4200mm*2440mm)


8mm/10mm (4200mm/4500mm*2440mm)




House windows - Thermal Insulation for House windows

Thermally insulating glass (also known as low-emissivity or low-E glass) usually forms the inner pane of an Insulating Glass Unit (IGU).

The glass has a transparent metallic coating that reflects heat from radiators or fires back into the room, rather than allowing it to escape through the windows. At the same time it allows free heat and light from the sun (known as passive solar heat gain) to pass through the glass, warming your home and further contributing to the energy efficiency of your windows.



Using thermally insulating double glazing is the best way to improve the energy efficiency of your windows and make your home environment more comfortable.

Improved thermal insulation - reduced heat loss saves you money on your heating bills.

Improved energy efficiency - reduced need for heating helps to save energy and protect the environment.

More comfortable rooms - improved thermal insulation means fewer cold spots and drafts near windows and doors.

Less condensation - the inner surface of the glass stays warmer, reducing internal condensation and prolonging the life of the windows.


Thermally insulating glass can be combined with many other products for multi-functional glazing, such as low-maintenance, solar control, noise reduction, decorative glass and enhanced safety and security.