Pilkington K Glass™ A


Pilkington K Glass™ A is an on-line coated low-emissivity glass designed to help improve the thermal insulation performance of insulating glass units (IGUs). The coating is applied during the float glass manufacturing process, forming a durable pyrolytic coating bonded to the glass surface.

When incorporated into double glazing units, Pilkington K Glass™ A can help reduce heat loss through the glazing, supporting improved energy efficiency in building envelopes. Its durable coating allows the glass to be handled, processed and stored in a similar way to standard float glass, subject to normal glazing industry practices.

The product is typically specified where reliable thermal insulation and robust handling characteristics are required within the fenestration supply chain, including residential and light commercial glazing applications.

Ready to specify Pilkington K Glass™ A?

Contact your local Pilkington UK representative today for technical guidance, test reports, samples, or details of your nearest UK supplier.

The Declaration of Performance (DoP) for our products can be accessed via www.pilkington.com/ce. Supporting test evidence for the DoP can be requested via enquiries@pilkington.com.

April 2026
Version UK:2.1.1

Key Features
Applications
Downloads

Key Features


  • On-line pyrolytic low-emissivity coating applied during float glass manufacture
  • Designed to reduce radiative heat loss when incorporated into insulated glazing units
  • Durable coating surface suitable for standard glazing processing operations
  • Can be handled and stored similarly to conventional float glass, subject to manufacturer guidance
  • Compatible with a range of insulating glass unit configurations
  • Suitable for use in thermally insulating glazing systems in accordance with relevant standards

Applications

  • Residential double glazed window units
  • Replacement glazing in existing housing stock
  • PVC-U, timber and aluminium window systems
  • New-build housing developments
  • Refurbishment and retrofit glazing projects
  • General fenestration supply chain applications requiring low-emissivity glass

Pilkington K Glass™ A Downloads

Pilkington K Glass™ Range Consumer Brochure 
Pilkington K Glass™ Handling and Processing Guidelines
Pilkington Spectrum

Pilkington Spectrum is a Windows-based glass performance model which enables you to quickly and efficiently calculate key properties of a wide range of single glazing and insulating glass units. Also available as an app for mobile devices, you can use Pilkington Spectrum to provide the following information:

  • Light and solar properties (transmittance, reflectance, absorptance, g value, etc.).
  • Centre pane Ug-value.
  • Sound insulation values.
  • Global Warming Potential (GWP), or carbon footprint.
  • Ultra violet (uv) transmittance and colour rendering index (Ra).
  • Other properties (e.g. pendulum body impact resistance, fire resistance, resistance to manual attack, etc.).