The special Aqua technology produces very small bubbles when spraying the paint. As the paint dries, the bubbles recede. The result is a smooth surface with even paint application. With conventional paints, too thick an application can cause the paint to run and drip downwards. a-system is different: with the Aqua technology the paint maintains its structure during drying even when applied thickly, which prevents the paint from running. For the best result for a thick application it is advisable to work in two or more stages. a-system can be overpainted after just three to five minutes of intermediate drying time.