TEKNOFLOOR AQUA PRIMER 150F

NEW CONCRETE SURFACES: Dense laitance is to be removed from steel-trowelled concrete by shot-blasting, surface grinding or etching. 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. OLD CONCRETE SURFACES: Uncoated, greasy floors are cleaned by emulsion wash. Thereafter laitance is removed by shot-blasting, scarifying, surface grinding or etching. Scarifying and shot-blasting are the best methods for removal of disrepair concrete or old flaking paint or composition layers. The surface preparation method for both new and old concrete is chosen according to condition of the concrete and strain the floor will be exposed to. The best method for floors to be attacked by heavy abrasion, chemicals or hot water is scarifying or shot-blasting. Surface grinding is enough if the floor will be subjected to minor abrasion only. In general, surface preparation by etching is not recommended for composition floors within industry. Etching is mainly used for small areas when mechanical preparation methods are not applicable. Etching is to be done with RENSA ETCHING etching liquid. Rinse the floor with water after etching and allow to dry.

MIXING OF THE COMPONENTS: At first mix the base and hardener carefully with a slow-rotating drilling machine. Thereafter dilute with water at the same time stirring. The priming is done with varnish that has bee diluted 10 - 20% by water. Pour the mixture immediately on to the floor as a streak and spread out with a short piled roller. Apply the varnish generously so that the concrete surface is saturated with the varnish. Areas where the varnish has been absorbed totally are to be treated again after about one hour (+23°C) from the first application. If the surface remains porous, air bubbles may form when applying the varnish. Crevices and cracks are filled with TEKNOPOX FILL. The coating can be applied when the varnish has been drying for at least one hour (+23°C). If the varnish has been drying for over 3 d (+23°C) the varnished surface is to be rubbed down and cleaned before coating.

There MUST NOT BE ANY WATER on the floor during application! 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. Adequate ventilation during application and drying period is recommended.

The storage stability is shown on the label. Store in a cool place and in tightly closed containers. Must not freeze.

At first mix the base and hardener carefully with a slow-rotating drilling machine. Thereafter dilute with water at the same time stirring.