Based on the results given in Fig. 4, the phosphate coating precipitation on the steel surface resulted in a decrement in contactangle of water. According to Fig. 4, Zn-PVA treated sample showeda lower contact angle compared to the Zn treated one. This observation indicates that Zn-PVA showed more hydrophilic nature than the one without PVA. This may be attributed to both the increase of roughness as a result of addition of PVA and the presence of PVA in the phosphate coating structure making it more hydrophilic.