TEKNOROAD 280

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.

Stir thoroughly before use. The paints are suitable for application by either low-pressure spray or airless spray. To achieve retro-reflectance, it is recommended that glass beads are strewn on the fresh paint coat.

The surface to be treated must be dry. 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%.

The storage stability is shown on the label. Store in a cool place and in tightly closed containers.