| 摘要 |
<p>In a continuous process, concrete paving flags 3 are transported by a continuous conveyor 2 through a first spray station 4, where a primer coat followed by a plurality of different colour paint coats are applied to the upper surface of the flags 3. At least one of the other coats is discontinuous, to provide a shaded effect. After passing through a first drying station 5, the flags 3 enter a second spray station 6, where a layer of clear polymer is applied, and this is subsequently cured in a second drying station 7. Thus, the concrete paving flags are provided with a decorative coating comprising the shaded paint coats, and the clear polymer layer imparts a shiny appearance to the paving flags 3. <IMAGE></p> |
