Pilkington Activ™ Self-cleaning Glass


Pilkington Activ™ is glass with a special coating that breaks down organic dirt deposits and causes rain water to ‘sheet’ down the glass washing the loosened dirt away. The coating has no effect on strength, but marginally reduces by about 5% the amount of light and energy passing through the glass. From certain angles it has a slightly greater reflective quality than normal glass, with a faint blue tint, giving it a clear, brighter appearance. It can be installed vertically or at an angle of at least 10 degrees, but ideally 30 degrees or more to the horizontal, and can be used for most exterior window applications, e.g. conservatories, façades, glass roofs, and is especially useful for inaccessible windows where organic dirt normally collects, such as skylights.

The integral coating is permanent, lasting as long as the glass itself. It will not flake off or discolour but can be affected if the surface is mechanically damaged, e.g. by pointed objects or abrasive cleaners. It is environmentally friendly, using harmless chemical substances and because only small amounts of cleaning agents are needed, Pilkington Activ™ is kinder to the environment than normal glass.

Pilkington Activ™ coating is not effective under overhangs or situations where daylight and/or rain cannot reach it. In hard water areas some whitening may occur on the coated surface, which requires solvent-free detergent cleaning. The presence of the Pilkington Activ™ coating can be identified using a unique hand-held detector on the coated surface.

Uses to enhance performance:

  • Pilkington Activ™ glass can be used in insulating units with the following Pilkington products as the inner pane: K Glass™, Optitherm™ S4.
  • Pilkington Activ™ glass can be laminated using tinted PVB interlayers (subject to thermal stress calculations). It can also be toughened.
  • In noise control solutions Pilkington Optiphon™ can be made with Pilkington Activ™.
  • For fire protection - consult Pilkington's technical support staff.


  • Durability of the coating: Conforms to BS EN 1096-2.
  • There is not currently an EN standard to cover self-cleaning performance.

General information

Uniclass 2015

Pr_25_71_33_02 Annealed glass sheetsPrimary


H10/10 Patent glazing

H10/115 Patent glazing

H11/110 Curtain walling

L10/10 Wood windows

L10/15 Wood windows

L10/20 Steel windows

L10/210 Wood windows

L10/25 Aluminium windows

L10/250 Wood windows

L10/260 Wood windows

L10/30 PVC-U windows

L10/31 PVC-U windows

L10/310 Steel windows

L10/315 Steel windows

L10/33 Proprietary windows

L10/330 Aluminium windows

L10/335 Aluminium windows

L10/350 PVC-U windows

L10/360 PVC-U windows

L10/380 PVC-U windows

L10/390 Proprietary windows

L10/400 Composite windows

L10/410 Composite windows

L10/45 Rooflights

L10/460 Rooflights

L10/480 Roof windows

L10/510 Glazed wood screens

L10/550 Glazed metal screens

null Glazed screen system

L10/560 Glazed screen system

null Secondary glazing system

L10/580 Secondary glazing system

L20/20 Wood flush doors

L20/230 Wood flush doors

L20/25 Wood panelled doors

L20/250 Wood panelled doors

L20/280 Doors

L20/410 Wood doorsets

L20/420 Wood doorsets

L20/430 Wood doorsets

L20/480 Doorsets

L20/55 Doorsets

L40/210 Putty-fronted single-glazing

L40/230 Bead-fixed single-glazing

L40/250 Bead-fixed single-glazing

L40/260 Bead-fixed single-glazing

L40/310 Bead-fixed single-glazing

L40/330 Bead-fixed single-glazing

L40/350 Bead-fixed single-glazing

L40/370 Bead-fixed insulating glass units

L40/371 Bead-fixed insulating glass units

L40/372 Bead-fixed insulating glass units

L40/380 Bead-fixed insulating glass units

L40/381 Bead-fixed insulating glass units

L40/40 Putty-fronted single-glazing

L40/410 Single-glazing into grooves

L40/430 Single-glazing into grooves

L40/450 Single-glazing into grooves

L40/470 Zipper gasket glazing

L40/490 Single-sided gasket glazing

L40/50 Bead-fixed single-glazing

L40/55 Bead-fixed insulating glass units

L40/57 Bead-fixed insulating glass units

L40/58 Bead-fixed insulating glass units

Specification data - Annealed glass sheets

Product Reference


Activ™ Blue

Activ Suncool™ 30/17

Activ Suncool™ Silver 50/30

Activ Suncool™ 70/35

Activ Suncool™ 70/40

Activ™ Suncool™ 70/35

Activ™ Suncool™ Blue 50/27

Activ™ Suncool™40/22

Activ Optitherm™ S4 Glass

Activ Optilam™ Glass (various interlayers)

Activ Optilam Suncool™ 30/17

Activ Optilam Suncool™ Silver 50/30

Activ Optilam Suncool™ 70/35

Activ Optilam Suncool™ Glass HP 70/40

Activ™ Optilam™ Suncool™ Blue 50/27

Activ™ Optilam™ Suncool™ 40/22

Activ Optilam™ Phon Glass

Activ Optilam™ Therm Glass



___ mm

Consult Pilkington for availability.

Product Options

Product types:

  • Activ™: The world's first self-cleaning glass.
  • Activ™ Blue. A new glass that is perfect for use in conservatories
  • Activ Optitherm™ S4 products in annealed form are available in jumbo and split sizes in thicknesses from 4 mm to 10 mm. Jumbo and split sizes are only available in batches of 2.5 tonnes.
  • Activ Suncool™. A range of four performance options offering various levels of light transmission, solar radiation transmission and colour. Consult with Pilkington for details.
  • Activ Optiphon™ Glass. A range of enhanced sound reduction laminated glass.
  • Activ Optilam™ Therm products are available in jumbo and split sizes in nominal thicknesses from 6 mm up to 12 mm. Jumbo and split sizes are only available in batches of 2.5 tonnes.
  • Cervoglass™. High performance glass solving many of the problems traditionally associated with conservatories reflecting solar heat in hot weather, yet keep warmth in when the temperature drops. Effective insulation properties reduce energy costs all year round, helping to reduce our carbon impact on the environment

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