This paper focuses on thermal conductivity and heat deflection temperature (H DT) of Epoxy-oMMT, Epoxy-Ti02 and Vinyl ester-oMMT nanocomposites with 2, 5 and 7 wt. % were prepared using high shear mixing technique with suitable curing cycles and operating speed. The thermal conductivity and HDT was measured using the Unithermo model 2022, as per ASTME-1530 (2011) and Tinius Olsen as per ASTM D -648(2007) at 1-8 Mpa of loading. The thermal conductivity and HDT increases with the addition of oMMT and Ti02 nanofiller indicating the formation of a percolative heat sink pathway. Further, thermal conductivity and HDT data obtained both from experiment and analytical estimations have shown good agreement.