TEKNODUR 100 9-00

Polyurethane top coat

  • UV resistant
  • 2-component
  • Solvent-borne
  • Topcoat

TEKNODUR 100 9-00 is a two-component, full-gloss polyurethane top coat. The hardener is an aliphatic isocyanate resin.

A highly durable topcoat for protective coating systems used on general structural steel constructions in demanding applications, such as transportation industry (trucks, trains, trams etc.), agricultural and construction equipment and steel constructions. TEKNODUR 100 9-00 provides a durable and weather resistant film with excellent colour and gloss retention, as well as good mechanical properties together with an excellent surface finish.

Surface preparation

Remove from the surfaces any contaminants that might be detrimental to surface preparation and application. Remove also water-soluble salts by using appropriate methods. The surfaces are prepared according to the different materials as follows: OLD PAINTED SURFACES SUITABLE FOR OVERCOATING: Any impurities that might be detrimental to the application of paint (e.g. grease and salts) are removed. The surfaces must be dry and clean. Old, painted surfaces that have exceeded the maximum overcoating time are to be roughened as well. Damaged parts are prepared in accordance with the requirements of the substrate and the maintenance coating. The place and time of the preparation are to be chosen so that the prepared surface will not get dirty or damp before the subsequent treatment. Additional instructive information for surface preparation can be found in standards EN ISO 12944-4 and ISO 8501-2.


MIXING OF THE COMPONENTS: Take into consideration the pot life of the mixture when estimating the amount to be mixed at a time. The base must be stirred until it is homogeneous before mixing the components. Before application the base and hardener are mixed in right proportion. Stir thoroughly down to the bottom of the vessel. Inadequate stirring or incorrect mixing ratio results in imperfect curing and impaired film properties. Stir thoroughly before use. Before use clean the spray gun and paint vessels with a thinner suitable for the paint. Painting should be carried out by 1.5 or 2 layer method: - Apply 1st layer as mist coat (1.5 layer method) or as thin as possible to form complete film (2 layer method). - Let the first layer dry for 5–10 min flash-off period. For both methods the second layer should be applied before the solvents have fully evaporated from the first layer. - Apply second layer to achieve the target dry film thickness.

Application conditions

The surface to be treated must be dry and the relative air humidity below 80%. During the application and drying period the temperature of the ambient air and the surface shall be at least above +5°C, and the temperature of the product above +15°C during mixing and spraying. Additionally, the temperature of the surface to be treated and the product must be at least +3°C above the dew point of the ambient air.


The storage stability is shown on the label. Store indoors in a cool and dry place and in a tightly closed can. The hardener reacts with air humidity and therefore the opened can is to be kept carefully closed, and it is recommended to be used within 14 d of opening.

Suitable air-assisted airless spray nozzle size 0.008 - 0.013". Suitable conventional spray nozzle size 1.0 - 1.5 mm, pressure 2.5 - 4.0 bar.
Total mass of solids abt. 720 g/l
Volatile organic compound (VOC) abt. 450 g/l
Pot life 3 h (+23 °C)
Mixing ratio 7:1 by volume (comp. A : comp. B)
Hardener Comp. B: TEKNODUR HARDENER 7230
Gloss Full gloss
Tinting system Teknotint
Practical spreading rate The values depend on the application technique, surface conditions, overspray, etc.
Drying time – dust free 1 h (ISO 9117-3:2010)
Drying time – touch dry 8 h (ISO 9117-5:2012)
Thinner Standard thinner: TEKNOSOLV 9521. Other thinners suitable for the product: see Thinning.
Clean up TEKNOCLEAN 6496 or TEKNOSOLV 9534.
Safety markings See safety data sheet. The hardener of the product and the ready mixture contain isocyanates. In poorly ventilated areas and especially when using spray application we recommend the use of a fresh air mask. In short or temporary work, a mask with combined filter A2-P2 can be used. In this case eyes and face are to be protected. The hardener can must be opened with caution, as pressure may develop in the can during storage.