TEKNOROAD 3059

The surface to be treated must be dry and clean. Loose matter that may weaken adhesion, such as sand, gravel, moss and other kind of growth, poorly adherent previous markings, oil and grease must always be carefully removed before applying the marking material. If the markings are applied on concrete surface, the casting 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 not exceed 5% by weight. Dense laitance must be thoroughly removed before painting by scarifying, shot-blasting, surface grinding, etching or by some other appropriate method. The etching is done with RENSA ETCHING etching liquid or by diluted hydrochloric acid (1 part of concentrated acid to 4 parts of water). Rinse the concrete surface with water after etching and allow to dry. If the concrete surface has previously been treated with a water and dirt repellent coating, dust binder etc., it is particularly important to use a sufficiently effective surface preparation method such as scarifying, which is sufficient to break the adhesion-resistant coating and thus to ensure the best possible adhesion to the substrate. Marking on coated concrete without adequate surface preparation may cause markings to detach from the substrate. We recommend that the top layer of the concrete surfaces is always removed in order to ensure good adhesion.

The product can be used as such for conventional and airless spraying. The homogeneity of the product must be ensured before application. If needed, the product is homogenized using e.g. a drill mixer. Paint should not be applied in over 400 µm film thicknesses in a single operation. Thicker paint films may crack and may come loose from the surface. Thicker films also slow down the drying of the paint, increasing risk of soiling vehicles passing over fresh markings. To achieve retro-reflectance, it is recommended that glass beads are strewn on the fresh paint coat. NOTE! TEKNOROAD 3059 will react violently with zinc and metal alloys containing zinc, like brass. Thus metal surfaces gather some deposits, which will appear as small particles on the filters and nozzles. In worst cases the fittings will get blocked all together. That is why all the equipment which touches the paint is to be of stainless steel or acid proof steel. Aluminium will not cause any deposits, but will corrode of the action of the paint. Therefore the use of aluminium should be avoided.

Avoid application when the relative humidity of the air exceeds 75%, as this slows down the drying considerably.

The storage stability is shown on the label. Store in a cool place and in tightly closed containers. The paint dries extremely fast and therefore easily forms skin into an open vessel.