TEKNODUR COMBI 3440-05

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: ALUMINIUM SURFACES: Treat the surfaces with suitable Cleaning Agent. Surfaces that are exposed to weathering are also roughened up with sweep blast-cleaning (AlSaS) or sanding. ANODIZED ALUMINIUM SURFACES: It is important that anodizing is done according to valid standards. It is recommended that Teknos’ laboratory has tested and approved the quality of the anodizing before use of TEKNODUR 3440. Clean the surfaces with TEKNOSOLV 6560. 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. 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. Before use clean the spray gun and paint vessels with a thinner suitable for the paint.

During the application and drying period the temperature of the ambient air, the surface and the product shall be above +5°C and the relative air humidity below 80%. 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 in a cool place and in tightly closed containers. The hardener reacts with air humidity. Use opened hardener within two weeks.