The distance between the adjacent particles and their coverage over the coating surface is
not adequate to trap stable air pockets inside the interstices. As a result, the RB-2 coatings were
also follow the Wenzel's wetting state. The water drops ( '"" 5 ml) gained perfect ball shape on RB-3
coating surface exhibiting a contact angle of 152 7 21 and eventually roll off the surface at
sliding angle of 10 7 0.51. Fig. 4 shows a snapshot of water drops on the superhydro- phobic RB-3
coating surface.