Demidekk® Ultimate Fönster™ (windows & doors) 12-YEAR LIFE

SKU: Jotun 1624P-1

From £69.99

  • High performance opaque finish
  • Tough, durable and beautiful
  • Protects for up to 12-years
  • Water repellent
  • Suitable for use with pre-treated and pre-stained timbers
  • Can be used in low temperatures
  • Touch dry in 2-hours
  • Available in 57 beautiful Demidekk colours (including White)
  • Also available mixed to almost ANY BS or RAL colours

Courier (if out) * 



JOTUN DEMIDEKK® ULTIMATE™ Fönster (Windows & Doors)

Demidekk® Ultimate™ Fönster (Windows & Doors) 12-Year Finish is a high-performance, long-lasting, flexible coating for smooth surfaces, including sheds, summerhouses, windows, doors, garden furniture, and as a topcoat on previously primed metal and plastic surfaces, including fascias, gutters, downpipes etc. Ultimate™ Fönster delivers the definitive durable finish without compromising looks or the environment, and is ideal for architects and customers requiring a high performing product.

RAL colours

Tough, durable and beautiful, Ultimate™ Fönster is a superb choice for anyone who wants lasting performance without compromise. Demidekk Ultimate™ Fönster can be mixed to almost any colour in the BS and RAL range, as well as the huge range of standard Jotun Demidekk colours. Please call to see if we can do your preferred colour. 

Formulated for durability, this technically superb product boasts a maintenance cycle of 12 years, while ensuring the same integrity and lustre throughout its long life. Its advanced waterborne system and exceptionally low Volatile Organic Compound (VOC) rating (the lowest of any stain available on the market today) means the impact on the environment is minimal, both immediate and over the long term. 

Jotun Demidekk® Ultimate™ Colour Chart

Jotun Demidekk Colour Chart 2017

Most BS and RAL colours are available too… click here to download the full colour chart.

Jotun® Penguin Video

Jotun’s values are highlighted in this short video.


Jotun Demidekk® Ultimate™ Fönster is suitable for use on all exterior joinery including: new woodwork, pressure-impregnated (Tanalised) timber, and previously painted woodwork. Available in 1L, 3L and 10L tins.

Demidekk Colours: Letthet (NEW), White, Egg White (NEW), Mist (NEW), Timeless (NEW), Antikkhvit (NEW), Fyn (NEW), Perlegra (NEW), Sanddyne (NEW), Demigul (NEW), Skagengul (NEW), Demi White (NEW), Lys Gra Umbra (NEW), Svolvaer (NEW), Gra Skifer (NEW), Varmgra (NEW), Kjonnrok Dempt (NEW), Balanese (NEW), Gronn Empire (NEW), Grabla (NEW), Contour (NEW), Laverod (NEW), Vestlandsrod (NEW), Venetian Red (NEW), Labrador (NEW), Herrgardsgronn (NEW), Front (NEW), Berg (NEW), Nut (NEW), Green Umber (NEW), Brown Black (NEW), Fountains, Hardwick, Old Cream, Travertina, Ochre Cream, Twine, Portland Stone, Swedish Grey, Pale Lichen, Sage Silk, Summerhouse, Ground Pink, Plaster, Old Fresco, Pale Pearl, Delft, Bell Blue, Old Ochre, Earthy Ground, Tudor Terracotta, Wainscots, Drum Red, Cedar Earth, Belverdere Blue, Bothy Green, and Blackened Black.

Most BS and RAL colours are available too… click here to download the full colour chart.

Coverage: 1 Litre will cover 10-12m² (smooth surfaces) per coat.
ApplicationBrush, Roller or Airless Sprayer.
Drying Time: 2hrs (touch dry), can be re-coated after 8hrs. Times based upon +23 °C, but dependent on temperature and humidity this can be less.
Life Expectancy: Up to 12 years, when applied in accordance with manufacturers guidance.

Jotun Demidekk® Ultimate™ Fönster Technical Datasheet


Jotun Demidekk® Ultimate™ Fönster will be boxed and delivered to your door within 3-5 working days. There is a £9.99 delivery charge to most of the UK mainland, however remote and offshore areas will be subject to a surcharge. Please call before ordering.

Note: This paint/preservative is ordered & mixed specially for our customers, therefore we are unable to accept returns under any circumstances. Please ensure that you order the correct colour and appropriate quantity for your requirements. 



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