Formation of a continuous film of metal through surface tension; the higher the surface tension, the more rapid and complete is the leafing.
                                                            
                                                     
                        
                                                
                        
                        
                            The orientation of pigment flakes in a horizontal plane, usually aluminum, having leaf-like veins.
                                                            
                                                     
                        
                                                
                        
                        
                            That property of flat pigment particles, such as metallic powders and mica, to align themselves in a more or less parallel manner with the coated surface, when mixed with vehicles and spread in a thin film.