Study on the Influence of Modified nanoclay on Vinylester Based gel coats and FRP Nanocomposite: This book provides detailed insight into the Synthesis of organomodified Indian Bentonite nanoclay deals with Na-IB with cationic surfactants and its characterization. Na-IB was organomodified using HDTMABr TBABr and TPPBr by varying the CEC to get HDTMABr-IB TBABr-IB and TPPBr-IB respectively. Then the modified clay thus obtained was characterized by using XRD SEM FTIR EDAX CHNS Particle size analyzer and their Processing characterization of FRP nanocomposites was discussed.