2500 Colours available
for next day delivery

12 Year Life Expectancy. Jotun Demidekk Ultimate. Exterior wood protection paint developed in Norway, Made in the UK.

Paint Garden House
Painted Dek
Painted Deck
Demmidekk Ultimate 2021 Trans

Jotun Demidekk Ultimate a High Performance Scandanavian Paint, Excellent Colour Retention & Durability on Exterior Wood.

12 yrs Colour and Protection on Log Cabins, Decking, Sheds, Fencing and Siding. Free Next Day Delivery on all orders.

Jotun Demidekk Ultimate is available in high design matt finishes from the RAL Classic, British Std and NCS Colour ranges. Order online from over 2500 colours, delivered next day to your home.

Demidekk is easy to apply by brush , roller or spray to produce a weather resistant , durable coating with excellent resistance to mould. It is an ideal home improvement paint for exterior wood on timber buildings, lodges, log cabins, sheds, decking and fencing. It is specified by leading architects.

Available in 3Lt and 10Lt recyclable containers for free next day delivery.

Demidekk Ultimate is an Ecological Sustainable Paint recognized by Miljømerking Norge and conforms with the demands of the environmental Swan label.


Jotun Demidekk Ultimate is a fast drying water based paint for long term protection of exterior wood with excellent colour stability and protection for up to 12 years on log cabins and exterior wood. The combination of high quality binders and weather resistant pigments protects wood against sunlight and provides excellent weatherability.

Demidekk Ultimate contains effect film conserving agents that counteract mould growth on the wood.

Demidekk Ultimate is easy to apply by brush or roller  and has a rich consistency, drying quickly and obtains water resistance very quickly. It can be applied direct to wood or as a topcoat over existing painted surfaces. Suitable for application by roller, brush or spray.

Demidekk Ultimate produces a subtle matt finish and is available in over 2500 NCS , RAL and British Standard colours. It is recognised by the Norwegian Environmental labelling system The Swan as a compliant coating.

Surface Preparation

Wood: Remove sharp edges and splinters using wire brush or abrasive pads. Surface to be clean, dry and undamaged compatible coating, free from oil grease and other contaminants.

Painted surfaces: Surface to be clean, dry and undamaged compatible coating, free from oil grease and other contaminants.

Technical Data

Download Datasheet Download Datasheet

Volume Solids (ISO 3223):  38%
VOC Content:  80 g/lt
Flash point (ISO 3679):  Non flammable
Dry Film thickness:  40-50 microns
Wet Film thickness:  90-110 micron
Theoretical coverage:  10 -7 sq m/lt
Touch Dry 23c:  30 mins
Overcoat 23c:  2 hrs
Nozzle tip:  15-18 thou

Pressure at nozzle:  1500psi
Thinner:  Not required
H&S:  Observe the precautionary information on the container. Refer to MSDS for full information on health and safety and storage regulations.

3 reviews for Jotun Demidekk Ultimate

  1. Brian Mckeown

    By far the best product for external wood surfaces. Facia boards and sheds. Little expensive but you only get what you pay for 5*****

  2. rod dickinson (verified owner)

    ‘jotun demidekk ultimate’ i have used this paint originally on my summer house, coverage and finish is excellent and lasting, have bought this new 3tlr can to re-paint the summerhouse (not that it really needs it as the original cover is still good).
    i have to say the customer service from Avace can only be described as superb! i made an original enquiry on saturday as i was not sure wether colour and code were one of the same. within half an hour i received a reply from Tony at Avace. i placed the order on sunday and received an e-mail on monday from Nafiesa, customer service manager advising me my order had been despatched. it arrived on tuesday morning!!! excellent and free delivery!!!thanks to all concerned

  3. Will (verified owner)

    went over the top to solve the issue of hi cost delivery to NE Scotland from fedex and found a cheaper delivery company

    Also help with finding the correct product

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12 Year Life Expectancy