TEKNOPUR SEALER 200-00

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: CONCRETE SURFACES: The concrete must be at least 4 weeks old and well-hardened so that all moisture from casting is bound and the surface dry. The moisture of the concrete must nor exceed 97 % as relative humidity or 4% by weight (by 45 / BLY 7). Dense laitance is to be removed from the concrete by shot-blasting, sanding or by sand blasting. Brittle and powdery top layers are treated so that the solid concrete containing aggregate is exposed. Thereafter all cement dust is removed by vacuum cleaner or brush. The concrete surface must be clean of anything that might hinder the adhesion. BITUMEN SURFACES: Remove from the surfaces any contaminants (e.g. grease and salts) that might be detrimental to painting. Surfaces to be painted must be dry and clean. Damaged parts are pretreated in accordance with the requirements placed by the substrate and the maintenance painting. GRP (Glasfiber Reinforced Plastic) COMPOSITE: Pretreat the surface using mechanical abrasive sanding P60 - P80. Remove dust. Due to varying nature of composites adhesion test is always recommended before extensive using. 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.

Apply by roller or brush until a consistent, thin film is formed on the surface. Applying on extremely porous surfaces it is recommended to apply 2 - 3 layers.

The surface to be treated has to be dry and the relative air humidity should be 50 - 90 %. During the application and drying process the air temperature and the surface to be treated has to be at least +5°C. The temperature of the surface 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 product can get turbid when stored for a long time or in cold conditions. Heating the product slightly causes the turbidity to disapper. 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 7 d of opening.