Aim: To know the effect of surface protective agents on the fluoride release property of GIC – An in Vitro Study. Method: sixty premolars were collected and divided into three groups, twenty in each. Group I: Uncoated, Group II: Petroleum jelly, Group III: Resin bonding agent. Class I cavity was prepared and restored with GIC on tooth samples. According to the groups division, samples were coated and stored in coconut water which was changed after every 24 hours for fifteen days to measure the fluoride release. Statistics & Result: The data was subjected to one–way ANOVA with the level of significance set at 0.05 (P < 0.05). The greatest amount of fluoride was released from the petroleum jelly group, followed in ranking by uncoated and bonding agent. Conclusion: Application of petroleum jelly can be used as coating for significant release of fluoride