All surfaces are clean, dry and dust free. If necessary it can be used an exterior putty for cracks. In order to save last layer of paint consumption and to increase penetration one coat of primer should be applied. For the top coat please wait 24 hours. Apply 2 coats of “AquaMatt 20 Siloxane” diluted with maximum 10% of water. Wait 12 hours between coats. Temperature for application is between +5 °C and +35 °C.